25555545

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 46455552

約数和(自身を除く): 20900007

約数列:

[1, 3, 5, 9, 15, 43, 45, 47, 129, 141, 215, 235, 281, 387, 423, 645, 705, 843, 1405, 1935, 2021, 2115, 2529, 4215, 6063, 10105, 12083, 12645, 13207, 18189, 30315, 36249, 39621, 60415, 66035, 90945, 108747, 118863, 181245, 198105, 543735, 567901, 594315, 1703703, 2839505, 5111109, 8518515, 25555545]

約数ペア:

[(1, 25555545), (3, 8518515), (5, 5111109), (9, 2839505), (15, 1703703), (43, 594315), (45, 567901), (47, 543735), (129, 198105), (141, 181245), (215, 118863), (235, 108747), (281, 90945), (387, 66035), (423, 60415), (645, 39621), (705, 36249), (843, 30315), (1405, 18189), (1935, 13207), (2021, 12645), (2115, 12083), (2529, 10105), (4215, 6063)]