774902020

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{199}}^1\times {\mathrm{1723}}^1$

素因数の和:2044

約数の個数: 48

約数和(自身を含む): 1650902400

約数和(自身を除く): 876000380

約数列:

[1, 2, 4, 5, 10, 20, 113, 199, 226, 398, 452, 565, 796, 995, 1130, 1723, 1990, 2260, 3446, 3980, 6892, 8615, 17230, 22487, 34460, 44974, 89948, 112435, 194699, 224870, 342877, 389398, 449740, 685754, 778796, 973495, 1371508, 1714385, 1946990, 3428770, 3893980, 6857540, 38745101, 77490202, 154980404, 193725505, 387451010, 774902020]

約数ペア:

[(1, 774902020), (2, 387451010), (4, 193725505), (5, 154980404), (10, 77490202), (20, 38745101), (113, 6857540), (199, 3893980), (226, 3428770), (398, 1946990), (452, 1714385), (565, 1371508), (796, 973495), (995, 778796), (1130, 685754), (1723, 449740), (1990, 389398), (2260, 342877), (3446, 224870), (3980, 194699), (6892, 112435), (8615, 89948), (17230, 44974), (22487, 34460)]