1991043288

素因数分解:

$2^3\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{557}}^1$

素因数の和:671

約数の個数: 256

約数和(自身を含む): 6374592000

約数和(自身を除く): 4383548712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 18, 19, 24, 26, 27, 36, 38, 39, 52, 54, 57, 67, 72, 76, 78, 104, 108, 114, 117, 134, 152, 156, 171, 201, 216, 228, 234, 247, 268, 312, 342, 351, 402, 456, 468, 494, 513, 536, 557, 603, 684, 702, 741, 804, 871, 936, 988, 1026, 1114, 1206, 1273, 1368, 1404, 1482, 1608, 1671, 1742, 1809, 1976, 2052, 2223, 2228, 2412, 2546, 2613, 2808, 2964, 3342, 3484, 3618, 3819, 4104, 4446, 4456, 4824, 5013, 5092, 5226, 5928, 6669, 6684, 6968, 7236, 7241, 7638, 7839, 8892, 10026, 10184, 10452, 10583, 11457, 13338, 13368, 14472, 14482, 15039, 15276, 15678, 16549, 17784, 20052, 20904, 21166, 21723, 22914, 23517, 26676, 28964, 30078, 30552, 31356, 31749, 33098, 34371, 37319, 40104, 42332, 43446, 45828, 47034, 49647, 53352, 57928, 60156, 62712, 63498, 65169, 66196, 68742, 74638, 84664, 86892, 91656, 94068, 95247, 99294, 111957, 120312, 126996, 130338, 132392, 137484, 137579, 148941, 149276, 173784, 188136, 190494, 195507, 198588, 223914, 253992, 260676, 274968, 275158, 285741, 297882, 298552, 335871, 380988, 391014, 397176, 412737, 446823, 447828, 485147, 521352, 550316, 571482, 595764, 671742, 709061, 761976, 782028, 825474, 893646, 895656, 970294, 1007613, 1100632, 1142964, 1191528, 1238211, 1343484, 1418122, 1455441, 1564056, 1650948, 1787292, 1940588, 2015226, 2127183, 2285928, 2476422, 2686968, 2836244, 2910882, 3301896, 3574584, 3714633, 3881176, 4030452, 4254366, 4366323, 4952844, 5672488, 5821764, 6381549, 7429266, 8060904, 8508732, 8732646, 9217793, 9905688, 11643528, 12763098, 13098969, 14858532, 17017464, 17465292, 18435586, 19144647, 25526196, 26197938, 27653379, 29717064, 34930584, 36871172, 38289294, 51052392, 52395876, 55306758, 73742344, 76578588, 82960137, 104791752, 110613516, 153157176, 165920274, 221227032, 248880411, 331840548, 497760822, 663681096, 995521644, 1991043288]

約数ペア:

[(1, 1991043288), (2, 995521644), (3, 663681096), (4, 497760822), (6, 331840548), (8, 248880411), (9, 221227032), (12, 165920274), (13, 153157176), (18, 110613516), (19, 104791752), (24, 82960137), (26, 76578588), (27, 73742344), (36, 55306758), (38, 52395876), (39, 51052392), (52, 38289294), (54, 36871172), (57, 34930584), (67, 29717064), (72, 27653379), (76, 26197938), (78, 25526196), (104, 19144647), (108, 18435586), (114, 17465292), (117, 17017464), (134, 14858532), (152, 13098969), (156, 12763098), (171, 11643528), (201, 9905688), (216, 9217793), (228, 8732646), (234, 8508732), (247, 8060904), (268, 7429266), (312, 6381549), (342, 5821764), (351, 5672488), (402, 4952844), (456, 4366323), (468, 4254366), (494, 4030452), (513, 3881176), (536, 3714633), (557, 3574584), (603, 3301896), (684, 2910882), (702, 2836244), (741, 2686968), (804, 2476422), (871, 2285928), (936, 2127183), (988, 2015226), (1026, 1940588), (1114, 1787292), (1206, 1650948), (1273, 1564056), (1368, 1455441), (1404, 1418122), (1482, 1343484), (1608, 1238211), (1671, 1191528), (1742, 1142964), (1809, 1100632), (1976, 1007613), (2052, 970294), (2223, 895656), (2228, 893646), (2412, 825474), (2546, 782028), (2613, 761976), (2808, 709061), (2964, 671742), (3342, 595764), (3484, 571482), (3618, 550316), (3819, 521352), (4104, 485147), (4446, 447828), (4456, 446823), (4824, 412737), (5013, 397176), (5092, 391014), (5226, 380988), (5928, 335871), (6669, 298552), (6684, 297882), (6968, 285741), (7236, 275158), (7241, 274968), (7638, 260676), (7839, 253992), (8892, 223914), (10026, 198588), (10184, 195507), (10452, 190494), (10583, 188136), (11457, 173784), (13338, 149276), (13368, 148941), (14472, 137579), (14482, 137484), (15039, 132392), (15276, 130338), (15678, 126996), (16549, 120312), (17784, 111957), (20052, 99294), (20904, 95247), (21166, 94068), (21723, 91656), (22914, 86892), (23517, 84664), (26676, 74638), (28964, 68742), (30078, 66196), (30552, 65169), (31356, 63498), (31749, 62712), (33098, 60156), (34371, 57928), (37319, 53352), (40104, 49647), (42332, 47034), (43446, 45828)]