215571720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1039}}^1$

素因数の和:1092

約数の個数: 256

約数和(自身を含む): 838656000

約数和(自身を除く): 623084280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 19, 20, 21, 24, 26, 28, 30, 35, 38, 39, 40, 42, 52, 56, 57, 60, 65, 70, 76, 78, 84, 91, 95, 104, 105, 114, 120, 130, 133, 140, 152, 156, 168, 182, 190, 195, 210, 228, 247, 260, 266, 273, 280, 285, 312, 364, 380, 390, 399, 420, 455, 456, 494, 520, 532, 546, 570, 665, 728, 741, 760, 780, 798, 840, 910, 988, 1039, 1064, 1092, 1140, 1235, 1330, 1365, 1482, 1560, 1596, 1729, 1820, 1976, 1995, 2078, 2184, 2280, 2470, 2660, 2730, 2964, 3117, 3192, 3458, 3640, 3705, 3990, 4156, 4940, 5187, 5195, 5320, 5460, 5928, 6234, 6916, 7273, 7410, 7980, 8312, 8645, 9880, 10374, 10390, 10920, 12468, 13507, 13832, 14546, 14820, 15585, 15960, 17290, 19741, 20748, 20780, 21819, 24936, 25935, 27014, 29092, 29640, 31170, 34580, 36365, 39482, 40521, 41496, 41560, 43638, 51870, 54028, 58184, 59223, 62340, 67535, 69160, 72730, 78964, 81042, 87276, 94549, 98705, 103740, 108056, 109095, 118446, 124680, 135070, 138187, 145460, 157928, 162084, 174552, 189098, 197410, 202605, 207480, 218190, 236892, 256633, 270140, 276374, 283647, 290920, 296115, 324168, 378196, 394820, 405210, 414561, 436380, 472745, 473784, 513266, 540280, 552748, 567294, 592230, 690935, 756392, 769899, 789640, 810420, 829122, 872760, 945490, 1026532, 1105496, 1134588, 1184460, 1283165, 1381870, 1418235, 1539798, 1620840, 1658244, 1796431, 1890980, 2053064, 2072805, 2269176, 2368920, 2566330, 2763740, 2836470, 3079596, 3316488, 3592862, 3781960, 3849495, 4145610, 5132660, 5389293, 5527480, 5672940, 6159192, 7185724, 7698990, 8291220, 8982155, 10265320, 10778586, 11345880, 14371448, 15397980, 16582440, 17964310, 21557172, 26946465, 30795960, 35928620, 43114344, 53892930, 71857240, 107785860, 215571720]

約数ペア:

[(1, 215571720), (2, 107785860), (3, 71857240), (4, 53892930), (5, 43114344), (6, 35928620), (7, 30795960), (8, 26946465), (10, 21557172), (12, 17964310), (13, 16582440), (14, 15397980), (15, 14371448), (19, 11345880), (20, 10778586), (21, 10265320), (24, 8982155), (26, 8291220), (28, 7698990), (30, 7185724), (35, 6159192), (38, 5672940), (39, 5527480), (40, 5389293), (42, 5132660), (52, 4145610), (56, 3849495), (57, 3781960), (60, 3592862), (65, 3316488), (70, 3079596), (76, 2836470), (78, 2763740), (84, 2566330), (91, 2368920), (95, 2269176), (104, 2072805), (105, 2053064), (114, 1890980), (120, 1796431), (130, 1658244), (133, 1620840), (140, 1539798), (152, 1418235), (156, 1381870), (168, 1283165), (182, 1184460), (190, 1134588), (195, 1105496), (210, 1026532), (228, 945490), (247, 872760), (260, 829122), (266, 810420), (273, 789640), (280, 769899), (285, 756392), (312, 690935), (364, 592230), (380, 567294), (390, 552748), (399, 540280), (420, 513266), (455, 473784), (456, 472745), (494, 436380), (520, 414561), (532, 405210), (546, 394820), (570, 378196), (665, 324168), (728, 296115), (741, 290920), (760, 283647), (780, 276374), (798, 270140), (840, 256633), (910, 236892), (988, 218190), (1039, 207480), (1064, 202605), (1092, 197410), (1140, 189098), (1235, 174552), (1330, 162084), (1365, 157928), (1482, 145460), (1560, 138187), (1596, 135070), (1729, 124680), (1820, 118446), (1976, 109095), (1995, 108056), (2078, 103740), (2184, 98705), (2280, 94549), (2470, 87276), (2660, 81042), (2730, 78964), (2964, 72730), (3117, 69160), (3192, 67535), (3458, 62340), (3640, 59223), (3705, 58184), (3990, 54028), (4156, 51870), (4940, 43638), (5187, 41560), (5195, 41496), (5320, 40521), (5460, 39482), (5928, 36365), (6234, 34580), (6916, 31170), (7273, 29640), (7410, 29092), (7980, 27014), (8312, 25935), (8645, 24936), (9880, 21819), (10374, 20780), (10390, 20748), (10920, 19741), (12468, 17290), (13507, 15960), (13832, 15585), (14546, 14820)]