20371000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1567}}^1$

素因数の和:1601

約数の個数: 64

約数和(自身を含む): 51367680

約数和(自身を除く): 30996680

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 1000, 1300, 1567, 1625, 2600, 3134, 3250, 6268, 6500, 7835, 12536, 13000, 15670, 20371, 31340, 39175, 40742, 62680, 78350, 81484, 101855, 156700, 162968, 195875, 203710, 313400, 391750, 407420, 509275, 783500, 814840, 1018550, 1567000, 2037100, 2546375, 4074200, 5092750, 10185500, 20371000]

約数ペア:

[(1, 20371000), (2, 10185500), (4, 5092750), (5, 4074200), (8, 2546375), (10, 2037100), (13, 1567000), (20, 1018550), (25, 814840), (26, 783500), (40, 509275), (50, 407420), (52, 391750), (65, 313400), (100, 203710), (104, 195875), (125, 162968), (130, 156700), (200, 101855), (250, 81484), (260, 78350), (325, 62680), (500, 40742), (520, 39175), (650, 31340), (1000, 20371), (1300, 15670), (1567, 13000), (1625, 12536), (2600, 7835), (3134, 6500), (3250, 6268)]