20291540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1613}}^1$

素因数の和:1676

約数の個数: 48

約数和(自身を含む): 46366992

約数和(自身を除く): 26075452

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 37, 68, 74, 85, 148, 170, 185, 340, 370, 629, 740, 1258, 1613, 2516, 3145, 3226, 6290, 6452, 8065, 12580, 16130, 27421, 32260, 54842, 59681, 109684, 119362, 137105, 238724, 274210, 298405, 548420, 596810, 1014577, 1193620, 2029154, 4058308, 5072885, 10145770, 20291540]

約数ペア:

[(1, 20291540), (2, 10145770), (4, 5072885), (5, 4058308), (10, 2029154), (17, 1193620), (20, 1014577), (34, 596810), (37, 548420), (68, 298405), (74, 274210), (85, 238724), (148, 137105), (170, 119362), (185, 109684), (340, 59681), (370, 54842), (629, 32260), (740, 27421), (1258, 16130), (1613, 12580), (2516, 8065), (3145, 6452), (3226, 6290)]