20213888

素因数分解:

$2^7\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2092

約数の個数: 32

約数和(自身を含む): 40800000

約数和(自身を除く): 20586112

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 316, 632, 1264, 1999, 2528, 3998, 5056, 7996, 10112, 15992, 31984, 63968, 127936, 157921, 255872, 315842, 631684, 1263368, 2526736, 5053472, 10106944, 20213888]

約数ペア:

[(1, 20213888), (2, 10106944), (4, 5053472), (8, 2526736), (16, 1263368), (32, 631684), (64, 315842), (79, 255872), (128, 157921), (158, 127936), (316, 63968), (632, 31984), (1264, 15992), (1999, 10112), (2528, 7996), (3998, 5056)]