81794120

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{65963}}^1$

素因数の和:66005

約数の個数: 32

約数和(自身を含む): 189976320

約数和(自身を除く): 108182200

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 65963, 131926, 263852, 329815, 527704, 659630, 1319260, 2044853, 2638520, 4089706, 8179412, 10224265, 16358824, 20448530, 40897060, 81794120]

約数ペア:

[(1, 81794120), (2, 40897060), (4, 20448530), (5, 16358824), (8, 10224265), (10, 8179412), (20, 4089706), (31, 2638520), (40, 2044853), (62, 1319260), (124, 659630), (155, 527704), (248, 329815), (310, 263852), (620, 131926), (1240, 65963)]