201320440

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{63709}}^1$

素因数の和:63799

約数の個数: 32

約数和(自身を含む): 458712000

約数和(自身を除く): 257391560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 63709, 127418, 254836, 318545, 509672, 637090, 1274180, 2548360, 5033011, 10066022, 20132044, 25165055, 40264088, 50330110, 100660220, 201320440]

約数ペア:

[(1, 201320440), (2, 100660220), (4, 50330110), (5, 40264088), (8, 25165055), (10, 20132044), (20, 10066022), (40, 5033011), (79, 2548360), (158, 1274180), (316, 637090), (395, 509672), (632, 318545), (790, 254836), (1580, 127418), (3160, 63709)]