12564669520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{389723}}^1$

素因数の和:389780

約数の個数: 80

約数和(自身を含む): 32474921472

約数和(自身を除く): 19910251952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 31, 40, 52, 62, 65, 80, 104, 124, 130, 155, 208, 248, 260, 310, 403, 496, 520, 620, 806, 1040, 1240, 1612, 2015, 2480, 3224, 4030, 6448, 8060, 16120, 32240, 389723, 779446, 1558892, 1948615, 3117784, 3897230, 5066399, 6235568, 7794460, 10132798, 12081413, 15588920, 20265596, 24162826, 25331995, 31177840, 40531192, 48325652, 50663990, 60407065, 81062384, 96651304, 101327980, 120814130, 157058369, 193302608, 202655960, 241628260, 314116738, 405311920, 483256520, 628233476, 785291845, 966513040, 1256466952, 1570583690, 2512933904, 3141167380, 6282334760, 12564669520]

約数ペア:

[(1, 12564669520), (2, 6282334760), (4, 3141167380), (5, 2512933904), (8, 1570583690), (10, 1256466952), (13, 966513040), (16, 785291845), (20, 628233476), (26, 483256520), (31, 405311920), (40, 314116738), (52, 241628260), (62, 202655960), (65, 193302608), (80, 157058369), (104, 120814130), (124, 101327980), (130, 96651304), (155, 81062384), (208, 60407065), (248, 50663990), (260, 48325652), (310, 40531192), (403, 31177840), (496, 25331995), (520, 24162826), (620, 20265596), (806, 15588920), (1040, 12081413), (1240, 10132798), (1612, 7794460), (2015, 6235568), (2480, 5066399), (3224, 3897230), (4030, 3117784), (6448, 1948615), (8060, 1558892), (16120, 779446), (32240, 389723)]