1640291380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{743}}^1\times {\mathrm{1213}}^1$

素因数の和:1985

約数の個数: 96

約数和(自身を含む): 4248728064

約数和(自身を除く): 2608436684

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 743, 910, 1213, 1486, 1820, 2426, 2972, 3715, 4852, 5201, 6065, 7430, 8491, 9659, 10402, 12130, 14860, 15769, 16982, 19318, 20804, 24260, 26005, 31538, 33964, 38636, 42455, 48295, 52010, 63076, 67613, 78845, 84910, 96590, 104020, 110383, 135226, 157690, 169820, 193180, 220766, 270452, 315380, 338065, 441532, 551915, 676130, 901259, 1103830, 1352260, 1802518, 2207660, 3605036, 4506295, 6308813, 9012590, 11716367, 12617626, 18025180, 23432734, 25235252, 31544065, 46865468, 58581835, 63088130, 82014569, 117163670, 126176260, 164029138, 234327340, 328058276, 410072845, 820145690, 1640291380]

約数ペア:

[(1, 1640291380), (2, 820145690), (4, 410072845), (5, 328058276), (7, 234327340), (10, 164029138), (13, 126176260), (14, 117163670), (20, 82014569), (26, 63088130), (28, 58581835), (35, 46865468), (52, 31544065), (65, 25235252), (70, 23432734), (91, 18025180), (130, 12617626), (140, 11716367), (182, 9012590), (260, 6308813), (364, 4506295), (455, 3605036), (743, 2207660), (910, 1802518), (1213, 1352260), (1486, 1103830), (1820, 901259), (2426, 676130), (2972, 551915), (3715, 441532), (4852, 338065), (5201, 315380), (6065, 270452), (7430, 220766), (8491, 193180), (9659, 169820), (10402, 157690), (12130, 135226), (14860, 110383), (15769, 104020), (16982, 96590), (19318, 84910), (20804, 78845), (24260, 67613), (26005, 63076), (31538, 52010), (33964, 48295), (38636, 42455)]