27408940

素因数分解:

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

素因数の和:682

約数の個数: 48

約数和(自身を含む): 62375040

約数和(自身を除く): 34966100

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 271, 389, 542, 778, 1084, 1355, 1556, 1945, 2710, 3523, 3890, 5057, 5420, 7046, 7780, 10114, 14092, 17615, 20228, 25285, 35230, 50570, 70460, 101140, 105419, 210838, 421676, 527095, 1054190, 1370447, 2108380, 2740894, 5481788, 6852235, 13704470, 27408940]

約数ペア:

[(1, 27408940), (2, 13704470), (4, 6852235), (5, 5481788), (10, 2740894), (13, 2108380), (20, 1370447), (26, 1054190), (52, 527095), (65, 421676), (130, 210838), (260, 105419), (271, 101140), (389, 70460), (542, 50570), (778, 35230), (1084, 25285), (1355, 20228), (1556, 17615), (1945, 14092), (2710, 10114), (3523, 7780), (3890, 7046), (5057, 5420)]