636640

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1$

素因数の和:211

約数の個数: 48

約数和(自身を含む): 1578528

約数和(自身を除く): 941888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 92, 115, 160, 173, 184, 230, 346, 368, 460, 692, 736, 865, 920, 1384, 1730, 1840, 2768, 3460, 3680, 3979, 5536, 6920, 7958, 13840, 15916, 19895, 27680, 31832, 39790, 63664, 79580, 127328, 159160, 318320, 636640]

約数ペア:

[(1, 636640), (2, 318320), (4, 159160), (5, 127328), (8, 79580), (10, 63664), (16, 39790), (20, 31832), (23, 27680), (32, 19895), (40, 15916), (46, 13840), (80, 7958), (92, 6920), (115, 5536), (160, 3979), (173, 3680), (184, 3460), (230, 2768), (346, 1840), (368, 1730), (460, 1384), (692, 920), (736, 865)]