81303540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{31513}}^1$

素因数の和:31568

約数の個数: 48

約数和(自身を含む): 232951488

約数和(自身を除く): 151647948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 43, 60, 86, 129, 172, 215, 258, 430, 516, 645, 860, 1290, 2580, 31513, 63026, 94539, 126052, 157565, 189078, 315130, 378156, 472695, 630260, 945390, 1355059, 1890780, 2710118, 4065177, 5420236, 6775295, 8130354, 13550590, 16260708, 20325885, 27101180, 40651770, 81303540]

約数ペア:

[(1, 81303540), (2, 40651770), (3, 27101180), (4, 20325885), (5, 16260708), (6, 13550590), (10, 8130354), (12, 6775295), (15, 5420236), (20, 4065177), (30, 2710118), (43, 1890780), (60, 1355059), (86, 945390), (129, 630260), (172, 472695), (215, 378156), (258, 315130), (430, 189078), (516, 157565), (645, 126052), (860, 94539), (1290, 63026), (2580, 31513)]