388628560

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{97}}^1\times {\mathrm{821}}^1$

素因数の和:992

約数の個数: 80

約数和(自身を含む): 928971792

約数和(自身を除く): 540343232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 97, 122, 194, 244, 305, 388, 485, 488, 610, 776, 821, 970, 976, 1220, 1552, 1642, 1940, 2440, 3284, 3880, 4105, 4880, 5917, 6568, 7760, 8210, 11834, 13136, 16420, 23668, 29585, 32840, 47336, 50081, 59170, 65680, 79637, 94672, 100162, 118340, 159274, 200324, 236680, 250405, 318548, 398185, 400648, 473360, 500810, 637096, 796370, 801296, 1001620, 1274192, 1592740, 2003240, 3185480, 4006480, 4857857, 6370960, 9715714, 19431428, 24289285, 38862856, 48578570, 77725712, 97157140, 194314280, 388628560]

約数ペア:

[(1, 388628560), (2, 194314280), (4, 97157140), (5, 77725712), (8, 48578570), (10, 38862856), (16, 24289285), (20, 19431428), (40, 9715714), (61, 6370960), (80, 4857857), (97, 4006480), (122, 3185480), (194, 2003240), (244, 1592740), (305, 1274192), (388, 1001620), (485, 801296), (488, 796370), (610, 637096), (776, 500810), (821, 473360), (970, 400648), (976, 398185), (1220, 318548), (1552, 250405), (1642, 236680), (1940, 200324), (2440, 159274), (3284, 118340), (3880, 100162), (4105, 94672), (4880, 79637), (5917, 65680), (6568, 59170), (7760, 50081), (8210, 47336), (11834, 32840), (13136, 29585), (16420, 23668)]