80409880

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{54331}}^1$

素因数の和:54379

約数の個数: 32

約数和(自身を含む): 185815440

約数和(自身を除く): 105405560

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 54331, 108662, 217324, 271655, 434648, 543310, 1086620, 2010247, 2173240, 4020494, 8040988, 10051235, 16081976, 20102470, 40204940, 80409880]

約数ペア:

[(1, 80409880), (2, 40204940), (4, 20102470), (5, 16081976), (8, 10051235), (10, 8040988), (20, 4020494), (37, 2173240), (40, 2010247), (74, 1086620), (148, 543310), (185, 434648), (296, 271655), (370, 217324), (740, 108662), (1480, 54331)]