81235600

素因数分解:

$2^4\times 5^2\times {\mathrm{43}}^1\times {\mathrm{4723}}^1$

素因数の和:4784

約数の個数: 60

約数和(自身を含む): 199749616

約数和(自身を除く): 118514016

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 43, 50, 80, 86, 100, 172, 200, 215, 344, 400, 430, 688, 860, 1075, 1720, 2150, 3440, 4300, 4723, 8600, 9446, 17200, 18892, 23615, 37784, 47230, 75568, 94460, 118075, 188920, 203089, 236150, 377840, 406178, 472300, 812356, 944600, 1015445, 1624712, 1889200, 2030890, 3249424, 4061780, 5077225, 8123560, 10154450, 16247120, 20308900, 40617800, 81235600]

約数ペア:

[(1, 81235600), (2, 40617800), (4, 20308900), (5, 16247120), (8, 10154450), (10, 8123560), (16, 5077225), (20, 4061780), (25, 3249424), (40, 2030890), (43, 1889200), (50, 1624712), (80, 1015445), (86, 944600), (100, 812356), (172, 472300), (200, 406178), (215, 377840), (344, 236150), (400, 203089), (430, 188920), (688, 118075), (860, 94460), (1075, 75568), (1720, 47230), (2150, 37784), (3440, 23615), (4300, 18892), (4723, 17200), (8600, 9446)]