2139800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{823}}^1$

素因数の和:852

約数の個数: 48

約数和(自身を含む): 5364240

約数和(自身を除く): 3224440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 823, 1300, 1646, 2600, 3292, 4115, 6584, 8230, 10699, 16460, 20575, 21398, 32920, 41150, 42796, 53495, 82300, 85592, 106990, 164600, 213980, 267475, 427960, 534950, 1069900, 2139800]

約数ペア:

[(1, 2139800), (2, 1069900), (4, 534950), (5, 427960), (8, 267475), (10, 213980), (13, 164600), (20, 106990), (25, 85592), (26, 82300), (40, 53495), (50, 42796), (52, 41150), (65, 32920), (100, 21398), (104, 20575), (130, 16460), (200, 10699), (260, 8230), (325, 6584), (520, 4115), (650, 3292), (823, 2600), (1300, 1646)]