20426640

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{6547}}^1$

素因数の和:6576

約数の個数: 80

約数和(自身を含む): 68203968

約数和(自身を除く): 47777328

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 39, 40, 48, 52, 60, 65, 78, 80, 104, 120, 130, 156, 195, 208, 240, 260, 312, 390, 520, 624, 780, 1040, 1560, 3120, 6547, 13094, 19641, 26188, 32735, 39282, 52376, 65470, 78564, 85111, 98205, 104752, 130940, 157128, 170222, 196410, 255333, 261880, 314256, 340444, 392820, 425555, 510666, 523760, 680888, 785640, 851110, 1021332, 1276665, 1361776, 1571280, 1702220, 2042664, 2553330, 3404440, 4085328, 5106660, 6808880, 10213320, 20426640]

約数ペア:

[(1, 20426640), (2, 10213320), (3, 6808880), (4, 5106660), (5, 4085328), (6, 3404440), (8, 2553330), (10, 2042664), (12, 1702220), (13, 1571280), (15, 1361776), (16, 1276665), (20, 1021332), (24, 851110), (26, 785640), (30, 680888), (39, 523760), (40, 510666), (48, 425555), (52, 392820), (60, 340444), (65, 314256), (78, 261880), (80, 255333), (104, 196410), (120, 170222), (130, 157128), (156, 130940), (195, 104752), (208, 98205), (240, 85111), (260, 78564), (312, 65470), (390, 52376), (520, 39282), (624, 32735), (780, 26188), (1040, 19641), (1560, 13094), (3120, 6547)]