64647920

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18793}}^1$

素因数の和:18849

約数の個数: 40

約数和(自身を含む): 153810096

約数和(自身を除く): 89162176

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 18793, 37586, 75172, 93965, 150344, 187930, 300688, 375860, 751720, 808099, 1503440, 1616198, 3232396, 4040495, 6464792, 8080990, 12929584, 16161980, 32323960, 64647920]

約数ペア:

[(1, 64647920), (2, 32323960), (4, 16161980), (5, 12929584), (8, 8080990), (10, 6464792), (16, 4040495), (20, 3232396), (40, 1616198), (43, 1503440), (80, 808099), (86, 751720), (172, 375860), (215, 300688), (344, 187930), (430, 150344), (688, 93965), (860, 75172), (1720, 37586), (3440, 18793)]