920667760

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{371237}}^1$

素因数の和:371281

約数の個数: 40

約数和(自身を含む): 2209608576

約数和(自身を除く): 1288940816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 371237, 742474, 1484948, 1856185, 2969896, 3712370, 5939792, 7424740, 11508347, 14849480, 23016694, 29698960, 46033388, 57541735, 92066776, 115083470, 184133552, 230166940, 460333880, 920667760]

約数ペア:

[(1, 920667760), (2, 460333880), (4, 230166940), (5, 184133552), (8, 115083470), (10, 92066776), (16, 57541735), (20, 46033388), (31, 29698960), (40, 23016694), (62, 14849480), (80, 11508347), (124, 7424740), (155, 5939792), (248, 3712370), (310, 2969896), (496, 1856185), (620, 1484948), (1240, 742474), (2480, 371237)]