664233280

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{66959}}^1$

素因数の和:67007

約数の個数: 56

約数和(自身を含む): 1632752640

約数和(自身を除く): 968519360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2480, 4960, 9920, 66959, 133918, 267836, 334795, 535672, 669590, 1071344, 1339180, 2075729, 2142688, 2678360, 4151458, 4285376, 5356720, 8302916, 10378645, 10713440, 16605832, 20757290, 21426880, 33211664, 41514580, 66423328, 83029160, 132846656, 166058320, 332116640, 664233280]

約数ペア:

[(1, 664233280), (2, 332116640), (4, 166058320), (5, 132846656), (8, 83029160), (10, 66423328), (16, 41514580), (20, 33211664), (31, 21426880), (32, 20757290), (40, 16605832), (62, 10713440), (64, 10378645), (80, 8302916), (124, 5356720), (155, 4285376), (160, 4151458), (248, 2678360), (310, 2142688), (320, 2075729), (496, 1339180), (620, 1071344), (992, 669590), (1240, 535672), (1984, 334795), (2480, 267836), (4960, 133918), (9920, 66959)]