81965772

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{53}}^1$

素因数の和:125

約数の個数: 216

約数和(自身を含む): 269601696

約数和(自身を除く): 187635924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 17, 18, 19, 21, 28, 34, 36, 38, 42, 51, 53, 57, 63, 68, 76, 84, 102, 106, 114, 119, 126, 133, 153, 159, 171, 204, 212, 228, 238, 252, 266, 306, 318, 323, 342, 357, 361, 371, 399, 476, 477, 532, 612, 636, 646, 684, 714, 722, 742, 798, 901, 954, 969, 1007, 1071, 1083, 1113, 1197, 1292, 1428, 1444, 1484, 1596, 1802, 1908, 1938, 2014, 2142, 2166, 2226, 2261, 2394, 2527, 2703, 2907, 3021, 3249, 3339, 3604, 3876, 4028, 4284, 4332, 4452, 4522, 4788, 5054, 5406, 5814, 6042, 6137, 6307, 6498, 6678, 6783, 7049, 7581, 8109, 9044, 9063, 10108, 10812, 11628, 12084, 12274, 12614, 12996, 13356, 13566, 14098, 15162, 16218, 17119, 18126, 18411, 18921, 19133, 20349, 21147, 22743, 24548, 25228, 27132, 28196, 30324, 32436, 34238, 36252, 36822, 37842, 38266, 40698, 42294, 42959, 45486, 51357, 55233, 56763, 57399, 63441, 68476, 73644, 75684, 76532, 81396, 84588, 85918, 90972, 102714, 110466, 113526, 114798, 119833, 126882, 128877, 133931, 154071, 171836, 172197, 205428, 220932, 227052, 229596, 239666, 253764, 257754, 267862, 308142, 325261, 344394, 359499, 386631, 401793, 479332, 515508, 535724, 616284, 650522, 688788, 718998, 773262, 803586, 975783, 1078497, 1205379, 1301044, 1437996, 1546524, 1607172, 1951566, 2156994, 2276827, 2410758, 2927349, 3903132, 4313988, 4553654, 4821516, 5854698, 6830481, 9107308, 11709396, 13660962, 20491443, 27321924, 40982886, 81965772]

約数ペア:

[(1, 81965772), (2, 40982886), (3, 27321924), (4, 20491443), (6, 13660962), (7, 11709396), (9, 9107308), (12, 6830481), (14, 5854698), (17, 4821516), (18, 4553654), (19, 4313988), (21, 3903132), (28, 2927349), (34, 2410758), (36, 2276827), (38, 2156994), (42, 1951566), (51, 1607172), (53, 1546524), (57, 1437996), (63, 1301044), (68, 1205379), (76, 1078497), (84, 975783), (102, 803586), (106, 773262), (114, 718998), (119, 688788), (126, 650522), (133, 616284), (153, 535724), (159, 515508), (171, 479332), (204, 401793), (212, 386631), (228, 359499), (238, 344394), (252, 325261), (266, 308142), (306, 267862), (318, 257754), (323, 253764), (342, 239666), (357, 229596), (361, 227052), (371, 220932), (399, 205428), (476, 172197), (477, 171836), (532, 154071), (612, 133931), (636, 128877), (646, 126882), (684, 119833), (714, 114798), (722, 113526), (742, 110466), (798, 102714), (901, 90972), (954, 85918), (969, 84588), (1007, 81396), (1071, 76532), (1083, 75684), (1113, 73644), (1197, 68476), (1292, 63441), (1428, 57399), (1444, 56763), (1484, 55233), (1596, 51357), (1802, 45486), (1908, 42959), (1938, 42294), (2014, 40698), (2142, 38266), (2166, 37842), (2226, 36822), (2261, 36252), (2394, 34238), (2527, 32436), (2703, 30324), (2907, 28196), (3021, 27132), (3249, 25228), (3339, 24548), (3604, 22743), (3876, 21147), (4028, 20349), (4284, 19133), (4332, 18921), (4452, 18411), (4522, 18126), (4788, 17119), (5054, 16218), (5406, 15162), (5814, 14098), (6042, 13566), (6137, 13356), (6307, 12996), (6498, 12614), (6678, 12274), (6783, 12084), (7049, 11628), (7581, 10812), (8109, 10108), (9044, 9063)]