231005240

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{7121}}^1$

素因数の和:7943

約数の個数: 32

約数和(自身を含む): 520475760

約数和(自身を除く): 289470520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 4055, 6488, 7121, 8110, 14242, 16220, 28484, 32440, 35605, 56968, 71210, 142420, 284840, 5775131, 11550262, 23100524, 28875655, 46201048, 57751310, 115502620, 231005240]

約数ペア:

[(1, 231005240), (2, 115502620), (4, 57751310), (5, 46201048), (8, 28875655), (10, 23100524), (20, 11550262), (40, 5775131), (811, 284840), (1622, 142420), (3244, 71210), (4055, 56968), (6488, 35605), (7121, 32440), (8110, 28484), (14242, 16220)]