1271960440

素因数分解:

$2^3\times 5^1\times {\mathrm{2243}}^1\times {\mathrm{14177}}^1$

素因数の和:16431

約数の個数: 32

約数和(自身を含む): 2863388880

約数和(自身を除く): 1591428440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2243, 4486, 8972, 11215, 14177, 17944, 22430, 28354, 44860, 56708, 70885, 89720, 113416, 141770, 283540, 567080, 31799011, 63598022, 127196044, 158995055, 254392088, 317990110, 635980220, 1271960440]

約数ペア:

[(1, 1271960440), (2, 635980220), (4, 317990110), (5, 254392088), (8, 158995055), (10, 127196044), (20, 63598022), (40, 31799011), (2243, 567080), (4486, 283540), (8972, 141770), (11215, 113416), (14177, 89720), (17944, 70885), (22430, 56708), (28354, 44860)]