31439440

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{2411}}^1$

素因数の和:2587

約数の個数: 40

約数和(自身を含む): 73575648

約数和(自身を除く): 42136208

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2411, 2608, 3260, 4822, 6520, 9644, 12055, 13040, 19288, 24110, 38576, 48220, 96440, 192880, 392993, 785986, 1571972, 1964965, 3143944, 3929930, 6287888, 7859860, 15719720, 31439440]

約数ペア:

[(1, 31439440), (2, 15719720), (4, 7859860), (5, 6287888), (8, 3929930), (10, 3143944), (16, 1964965), (20, 1571972), (40, 785986), (80, 392993), (163, 192880), (326, 96440), (652, 48220), (815, 38576), (1304, 24110), (1630, 19288), (2411, 13040), (2608, 12055), (3260, 9644), (4822, 6520)]