20485200

素因数分解:

$2^4\times 3^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{397}}^1$

素因数の和:461

約数の個数: 120

約数和(自身を含む): 67316128

約数和(自身を除く): 46830928

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 25, 30, 40, 43, 48, 50, 60, 75, 80, 86, 100, 120, 129, 150, 172, 200, 215, 240, 258, 300, 344, 397, 400, 430, 516, 600, 645, 688, 794, 860, 1032, 1075, 1191, 1200, 1290, 1588, 1720, 1985, 2064, 2150, 2382, 2580, 3176, 3225, 3440, 3970, 4300, 4764, 5160, 5955, 6352, 6450, 7940, 8600, 9528, 9925, 10320, 11910, 12900, 15880, 17071, 17200, 19056, 19850, 23820, 25800, 29775, 31760, 34142, 39700, 47640, 51213, 51600, 59550, 68284, 79400, 85355, 95280, 102426, 119100, 136568, 158800, 170710, 204852, 238200, 256065, 273136, 341420, 409704, 426775, 476400, 512130, 682840, 819408, 853550, 1024260, 1280325, 1365680, 1707100, 2048520, 2560650, 3414200, 4097040, 5121300, 6828400, 10242600, 20485200]

約数ペア:

[(1, 20485200), (2, 10242600), (3, 6828400), (4, 5121300), (5, 4097040), (6, 3414200), (8, 2560650), (10, 2048520), (12, 1707100), (15, 1365680), (16, 1280325), (20, 1024260), (24, 853550), (25, 819408), (30, 682840), (40, 512130), (43, 476400), (48, 426775), (50, 409704), (60, 341420), (75, 273136), (80, 256065), (86, 238200), (100, 204852), (120, 170710), (129, 158800), (150, 136568), (172, 119100), (200, 102426), (215, 95280), (240, 85355), (258, 79400), (300, 68284), (344, 59550), (397, 51600), (400, 51213), (430, 47640), (516, 39700), (600, 34142), (645, 31760), (688, 29775), (794, 25800), (860, 23820), (1032, 19850), (1075, 19056), (1191, 17200), (1200, 17071), (1290, 15880), (1588, 12900), (1720, 11910), (1985, 10320), (2064, 9925), (2150, 9528), (2382, 8600), (2580, 7940), (3176, 6450), (3225, 6352), (3440, 5955), (3970, 5160), (4300, 4764)]