408287360

素因数分解:

$2^7\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1646

約数の個数: 128

約数和(自身を含む): 1085736960

約数和(自身を除く): 677449600

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 32, 40, 52, 62, 64, 65, 80, 104, 124, 128, 130, 155, 160, 208, 248, 260, 310, 320, 403, 416, 496, 520, 620, 640, 806, 832, 992, 1040, 1240, 1583, 1612, 1664, 1984, 2015, 2080, 2480, 3166, 3224, 3968, 4030, 4160, 4960, 6332, 6448, 7915, 8060, 8320, 9920, 12664, 12896, 15830, 16120, 19840, 20579, 25328, 25792, 31660, 32240, 41158, 49073, 50656, 51584, 63320, 64480, 82316, 98146, 101312, 102895, 126640, 128960, 164632, 196292, 202624, 205790, 245365, 253280, 257920, 329264, 392584, 411580, 490730, 506560, 637949, 658528, 785168, 823160, 981460, 1013120, 1275898, 1317056, 1570336, 1646320, 1962920, 2551796, 2634112, 3140672, 3189745, 3292640, 3925840, 5103592, 6281344, 6379490, 6585280, 7851680, 10207184, 12758980, 13170560, 15703360, 20414368, 25517960, 31406720, 40828736, 51035920, 81657472, 102071840, 204143680, 408287360]

約数ペア:

[(1, 408287360), (2, 204143680), (4, 102071840), (5, 81657472), (8, 51035920), (10, 40828736), (13, 31406720), (16, 25517960), (20, 20414368), (26, 15703360), (31, 13170560), (32, 12758980), (40, 10207184), (52, 7851680), (62, 6585280), (64, 6379490), (65, 6281344), (80, 5103592), (104, 3925840), (124, 3292640), (128, 3189745), (130, 3140672), (155, 2634112), (160, 2551796), (208, 1962920), (248, 1646320), (260, 1570336), (310, 1317056), (320, 1275898), (403, 1013120), (416, 981460), (496, 823160), (520, 785168), (620, 658528), (640, 637949), (806, 506560), (832, 490730), (992, 411580), (1040, 392584), (1240, 329264), (1583, 257920), (1612, 253280), (1664, 245365), (1984, 205790), (2015, 202624), (2080, 196292), (2480, 164632), (3166, 128960), (3224, 126640), (3968, 102895), (4030, 101312), (4160, 98146), (4960, 82316), (6332, 64480), (6448, 63320), (7915, 51584), (8060, 50656), (8320, 49073), (9920, 41158), (12664, 32240), (12896, 31660), (15830, 25792), (16120, 25328), (19840, 20579)]