40536940

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 87494400

約数和(自身を除く): 46957460

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 149, 223, 244, 298, 305, 446, 596, 610, 745, 892, 1115, 1220, 1490, 2230, 2980, 4460, 9089, 13603, 18178, 27206, 33227, 36356, 45445, 54412, 66454, 68015, 90890, 132908, 136030, 166135, 181780, 272060, 332270, 664540, 2026847, 4053694, 8107388, 10134235, 20268470, 40536940]

約数ペア:

[(1, 40536940), (2, 20268470), (4, 10134235), (5, 8107388), (10, 4053694), (20, 2026847), (61, 664540), (122, 332270), (149, 272060), (223, 181780), (244, 166135), (298, 136030), (305, 132908), (446, 90890), (596, 68015), (610, 66454), (745, 54412), (892, 45445), (1115, 36356), (1220, 33227), (1490, 27206), (2230, 18178), (2980, 13603), (4460, 9089)]