54817880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{389}}^1$

素因数の和:684

約数の個数: 64

約数和(自身を含む): 133660800

約数和(自身を除く): 78842920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 271, 389, 520, 542, 778, 1084, 1355, 1556, 1945, 2168, 2710, 3112, 3523, 3890, 5057, 5420, 7046, 7780, 10114, 10840, 14092, 15560, 17615, 20228, 25285, 28184, 35230, 40456, 50570, 70460, 101140, 105419, 140920, 202280, 210838, 421676, 527095, 843352, 1054190, 1370447, 2108380, 2740894, 4216760, 5481788, 6852235, 10963576, 13704470, 27408940, 54817880]

約数ペア:

[(1, 54817880), (2, 27408940), (4, 13704470), (5, 10963576), (8, 6852235), (10, 5481788), (13, 4216760), (20, 2740894), (26, 2108380), (40, 1370447), (52, 1054190), (65, 843352), (104, 527095), (130, 421676), (260, 210838), (271, 202280), (389, 140920), (520, 105419), (542, 101140), (778, 70460), (1084, 50570), (1355, 40456), (1556, 35230), (1945, 28184), (2168, 25285), (2710, 20228), (3112, 17615), (3523, 15560), (3890, 14092), (5057, 10840), (5420, 10114), (7046, 7780)]