18770345

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:257

約数の個数: 32

約数和(自身を含む): 25850880

約数和(自身を除く): 7080535

約数列:

[1, 5, 11, 31, 55, 101, 109, 155, 341, 505, 545, 1111, 1199, 1705, 3131, 3379, 5555, 5995, 11009, 15655, 16895, 34441, 37169, 55045, 121099, 172205, 185845, 341279, 605495, 1706395, 3754069, 18770345]

約数ペア:

[(1, 18770345), (5, 3754069), (11, 1706395), (31, 605495), (55, 341279), (101, 185845), (109, 172205), (155, 121099), (341, 55045), (505, 37169), (545, 34441), (1111, 16895), (1199, 15655), (1705, 11009), (3131, 5995), (3379, 5555)]