21988045360

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{46451}}^1$

素因数の和:46622

約数の個数: 80

約数和(自身を含む): 52497077472

約数和(自身を除く): 30509032112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 97, 122, 194, 244, 305, 388, 485, 488, 610, 776, 970, 976, 1220, 1552, 1940, 2440, 3880, 4880, 5917, 7760, 11834, 23668, 29585, 46451, 47336, 59170, 92902, 94672, 118340, 185804, 232255, 236680, 371608, 464510, 473360, 743216, 929020, 1858040, 2833511, 3716080, 4505747, 5667022, 9011494, 11334044, 14167555, 18022988, 22528735, 22668088, 28335110, 36045976, 45057470, 45336176, 56670220, 72091952, 90114940, 113340440, 180229880, 226680880, 274850567, 360459760, 549701134, 1099402268, 1374252835, 2198804536, 2748505670, 4397609072, 5497011340, 10994022680, 21988045360]

約数ペア:

[(1, 21988045360), (2, 10994022680), (4, 5497011340), (5, 4397609072), (8, 2748505670), (10, 2198804536), (16, 1374252835), (20, 1099402268), (40, 549701134), (61, 360459760), (80, 274850567), (97, 226680880), (122, 180229880), (194, 113340440), (244, 90114940), (305, 72091952), (388, 56670220), (485, 45336176), (488, 45057470), (610, 36045976), (776, 28335110), (970, 22668088), (976, 22528735), (1220, 18022988), (1552, 14167555), (1940, 11334044), (2440, 9011494), (3880, 5667022), (4880, 4505747), (5917, 3716080), (7760, 2833511), (11834, 1858040), (23668, 929020), (29585, 743216), (46451, 473360), (47336, 464510), (59170, 371608), (92902, 236680), (94672, 232255), (118340, 185804)]