28635880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{7867}}^1$

素因数の和:7898

約数の個数: 64

約数和(自身を含む): 79309440

約数和(自身を除く): 50673560

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 40, 52, 56, 65, 70, 91, 104, 130, 140, 182, 260, 280, 364, 455, 520, 728, 910, 1820, 3640, 7867, 15734, 31468, 39335, 55069, 62936, 78670, 102271, 110138, 157340, 204542, 220276, 275345, 314680, 409084, 440552, 511355, 550690, 715897, 818168, 1022710, 1101380, 1431794, 2045420, 2202760, 2863588, 3579485, 4090840, 5727176, 7158970, 14317940, 28635880]

約数ペア:

[(1, 28635880), (2, 14317940), (4, 7158970), (5, 5727176), (7, 4090840), (8, 3579485), (10, 2863588), (13, 2202760), (14, 2045420), (20, 1431794), (26, 1101380), (28, 1022710), (35, 818168), (40, 715897), (52, 550690), (56, 511355), (65, 440552), (70, 409084), (91, 314680), (104, 275345), (130, 220276), (140, 204542), (182, 157340), (260, 110138), (280, 102271), (364, 78670), (455, 62936), (520, 55069), (728, 39335), (910, 31468), (1820, 15734), (3640, 7867)]