20879072

素因数分解:

$2^5\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:339

約数の個数: 48

約数和(自身を含む): 43092000

約数和(自身を除く): 22212928

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 116, 149, 151, 232, 298, 302, 464, 596, 604, 928, 1192, 1208, 2384, 2416, 4321, 4379, 4768, 4832, 8642, 8758, 17284, 17516, 22499, 34568, 35032, 44998, 69136, 70064, 89996, 138272, 140128, 179992, 359984, 652471, 719968, 1304942, 2609884, 5219768, 10439536, 20879072]

約数ペア:

[(1, 20879072), (2, 10439536), (4, 5219768), (8, 2609884), (16, 1304942), (29, 719968), (32, 652471), (58, 359984), (116, 179992), (149, 140128), (151, 138272), (232, 89996), (298, 70064), (302, 69136), (464, 44998), (596, 35032), (604, 34568), (928, 22499), (1192, 17516), (1208, 17284), (2384, 8758), (2416, 8642), (4321, 4832), (4379, 4768)]