256925816

素因数分解:

$2^3\times 7^2\times {\mathrm{163}}^1\times {\mathrm{4021}}^1$

素因数の和:4204

約数の個数: 48

約数和(自身を含む): 563964840

約数和(自身を除く): 307039024

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 163, 196, 326, 392, 652, 1141, 1304, 2282, 4021, 4564, 7987, 8042, 9128, 15974, 16084, 28147, 31948, 32168, 56294, 63896, 112588, 197029, 225176, 394058, 655423, 788116, 1310846, 1576232, 2621692, 4587961, 5243384, 9175922, 18351844, 32115727, 36703688, 64231454, 128462908, 256925816]

約数ペア:

[(1, 256925816), (2, 128462908), (4, 64231454), (7, 36703688), (8, 32115727), (14, 18351844), (28, 9175922), (49, 5243384), (56, 4587961), (98, 2621692), (163, 1576232), (196, 1310846), (326, 788116), (392, 655423), (652, 394058), (1141, 225176), (1304, 197029), (2282, 112588), (4021, 63896), (4564, 56294), (7987, 32168), (8042, 31948), (9128, 28147), (15974, 16084)]