30967760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12487}}^1$

素因数の和:12531

約数の個数: 40

約数和(自身を含む): 74328576

約数和(自身を除く): 43360816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 12487, 24974, 49948, 62435, 99896, 124870, 199792, 249740, 387097, 499480, 774194, 998960, 1548388, 1935485, 3096776, 3870970, 6193552, 7741940, 15483880, 30967760]

約数ペア:

[(1, 30967760), (2, 15483880), (4, 7741940), (5, 6193552), (8, 3870970), (10, 3096776), (16, 1935485), (20, 1548388), (31, 998960), (40, 774194), (62, 499480), (80, 387097), (124, 249740), (155, 199792), (248, 124870), (310, 99896), (496, 62435), (620, 49948), (1240, 24974), (2480, 12487)]