131559940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{1619}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 293932800

約数和(自身を除く): 162372860

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 239, 340, 478, 956, 1195, 1619, 2390, 3238, 4063, 4780, 6476, 8095, 8126, 16190, 16252, 20315, 27523, 32380, 40630, 55046, 81260, 110092, 137615, 275230, 386941, 550460, 773882, 1547764, 1934705, 3869410, 6577997, 7738820, 13155994, 26311988, 32889985, 65779970, 131559940]

約数ペア:

[(1, 131559940), (2, 65779970), (4, 32889985), (5, 26311988), (10, 13155994), (17, 7738820), (20, 6577997), (34, 3869410), (68, 1934705), (85, 1547764), (170, 773882), (239, 550460), (340, 386941), (478, 275230), (956, 137615), (1195, 110092), (1619, 81260), (2390, 55046), (3238, 40630), (4063, 32380), (4780, 27523), (6476, 20315), (8095, 16252), (8126, 16190)]