643264

素因数分解:

$2^6\times {\mathrm{19}}^1\times {\mathrm{23}}^2$

素因数の和:77

約数の個数: 42

約数和(自身を含む): 1404620

約数和(自身を除く): 761356

約数列:

[1, 2, 4, 8, 16, 19, 23, 32, 38, 46, 64, 76, 92, 152, 184, 304, 368, 437, 529, 608, 736, 874, 1058, 1216, 1472, 1748, 2116, 3496, 4232, 6992, 8464, 10051, 13984, 16928, 20102, 27968, 33856, 40204, 80408, 160816, 321632, 643264]

約数ペア:

[(1, 643264), (2, 321632), (4, 160816), (8, 80408), (16, 40204), (19, 33856), (23, 27968), (32, 20102), (38, 16928), (46, 13984), (64, 10051), (76, 8464), (92, 6992), (152, 4232), (184, 3496), (304, 2116), (368, 1748), (437, 1472), (529, 1216), (608, 1058), (736, 874)]