20809232

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{163}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 41485440

約数和(自身を除く): 20676208

約数列:

[1, 2, 4, 8, 16, 79, 101, 158, 163, 202, 316, 326, 404, 632, 652, 808, 1264, 1304, 1616, 2608, 7979, 12877, 15958, 16463, 25754, 31916, 32926, 51508, 63832, 65852, 103016, 127664, 131704, 206032, 263408, 1300577, 2601154, 5202308, 10404616, 20809232]

約数ペア:

[(1, 20809232), (2, 10404616), (4, 5202308), (8, 2601154), (16, 1300577), (79, 263408), (101, 206032), (158, 131704), (163, 127664), (202, 103016), (316, 65852), (326, 63832), (404, 51508), (632, 32926), (652, 31916), (808, 25754), (1264, 16463), (1304, 15958), (1616, 12877), (2608, 7979)]