20797856

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:541

約数の個数: 48

約数和(自身を含む): 43747200

約数和(自身を除く): 22949344

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 79, 152, 158, 304, 316, 433, 608, 632, 866, 1264, 1501, 1732, 2528, 3002, 3464, 6004, 6928, 8227, 12008, 13856, 16454, 24016, 32908, 34207, 48032, 65816, 68414, 131632, 136828, 263264, 273656, 547312, 649933, 1094624, 1299866, 2599732, 5199464, 10398928, 20797856]

約数ペア:

[(1, 20797856), (2, 10398928), (4, 5199464), (8, 2599732), (16, 1299866), (19, 1094624), (32, 649933), (38, 547312), (76, 273656), (79, 263264), (152, 136828), (158, 131632), (304, 68414), (316, 65816), (433, 48032), (608, 34207), (632, 32908), (866, 24016), (1264, 16454), (1501, 13856), (1732, 12008), (2528, 8227), (3002, 6928), (3464, 6004)]