15705220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{347}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 34610688

約数和(自身を除く): 18905468

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 73, 124, 146, 155, 292, 310, 347, 365, 620, 694, 730, 1388, 1460, 1735, 2263, 3470, 4526, 6940, 9052, 10757, 11315, 21514, 22630, 25331, 43028, 45260, 50662, 53785, 101324, 107570, 126655, 215140, 253310, 506620, 785261, 1570522, 3141044, 3926305, 7852610, 15705220]

約数ペア:

[(1, 15705220), (2, 7852610), (4, 3926305), (5, 3141044), (10, 1570522), (20, 785261), (31, 506620), (62, 253310), (73, 215140), (124, 126655), (146, 107570), (155, 101324), (292, 53785), (310, 50662), (347, 45260), (365, 43028), (620, 25331), (694, 22630), (730, 21514), (1388, 11315), (1460, 10757), (1735, 9052), (2263, 6940), (3470, 4526)]