28731560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5023}}^1$

素因数の和:5058

約数の個数: 64

約数和(自身を含む): 75962880

約数和(自身を除く): 47231320

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 44, 52, 55, 65, 88, 104, 110, 130, 143, 220, 260, 286, 440, 520, 572, 715, 1144, 1430, 2860, 5023, 5720, 10046, 20092, 25115, 40184, 50230, 55253, 65299, 100460, 110506, 130598, 200920, 221012, 261196, 276265, 326495, 442024, 522392, 552530, 652990, 718289, 1105060, 1305980, 1436578, 2210120, 2611960, 2873156, 3591445, 5746312, 7182890, 14365780, 28731560]

約数ペア:

[(1, 28731560), (2, 14365780), (4, 7182890), (5, 5746312), (8, 3591445), (10, 2873156), (11, 2611960), (13, 2210120), (20, 1436578), (22, 1305980), (26, 1105060), (40, 718289), (44, 652990), (52, 552530), (55, 522392), (65, 442024), (88, 326495), (104, 276265), (110, 261196), (130, 221012), (143, 200920), (220, 130598), (260, 110506), (286, 100460), (440, 65299), (520, 55253), (572, 50230), (715, 40184), (1144, 25115), (1430, 20092), (2860, 10046), (5023, 5720)]