40809610

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1\times {\mathrm{449}}^1$

素因数の和:666

約数の個数: 32

約数和(自身を含む): 75330000

約数和(自身を除く): 34520390

約数列:

[1, 2, 5, 10, 61, 122, 149, 298, 305, 449, 610, 745, 898, 1490, 2245, 4490, 9089, 18178, 27389, 45445, 54778, 66901, 90890, 133802, 136945, 273890, 334505, 669010, 4080961, 8161922, 20404805, 40809610]

約数ペア:

[(1, 40809610), (2, 20404805), (5, 8161922), (10, 4080961), (61, 669010), (122, 334505), (149, 273890), (298, 136945), (305, 133802), (449, 90890), (610, 66901), (745, 54778), (898, 45445), (1490, 27389), (2245, 18178), (4490, 9089)]