221401280

素因数分解:

$2^6\times 5^1\times {\mathrm{683}}^1\times {\mathrm{1013}}^1$

素因数の和:1713

約数の個数: 56

約数和(自身を含む): 528504912

約数和(自身を除く): 307103632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 683, 1013, 1366, 2026, 2732, 3415, 4052, 5065, 5464, 6830, 8104, 10130, 10928, 13660, 16208, 20260, 21856, 27320, 32416, 40520, 43712, 54640, 64832, 81040, 109280, 162080, 218560, 324160, 691879, 1383758, 2767516, 3459395, 5535032, 6918790, 11070064, 13837580, 22140128, 27675160, 44280256, 55350320, 110700640, 221401280]

約数ペア:

[(1, 221401280), (2, 110700640), (4, 55350320), (5, 44280256), (8, 27675160), (10, 22140128), (16, 13837580), (20, 11070064), (32, 6918790), (40, 5535032), (64, 3459395), (80, 2767516), (160, 1383758), (320, 691879), (683, 324160), (1013, 218560), (1366, 162080), (2026, 109280), (2732, 81040), (3415, 64832), (4052, 54640), (5065, 43712), (5464, 40520), (6830, 32416), (8104, 27320), (10130, 21856), (10928, 20260), (13660, 16208)]