201561460

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:856

約数の個数: 48

約数和(自身を含む): 431827200

約数和(自身を除く): 230265740

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 349, 431, 670, 698, 862, 1340, 1396, 1724, 1745, 2155, 3490, 4310, 6980, 8620, 23383, 28877, 46766, 57754, 93532, 115508, 116915, 144385, 150419, 233830, 288770, 300838, 467660, 577540, 601676, 752095, 1504190, 3008380, 10078073, 20156146, 40312292, 50390365, 100780730, 201561460]

約数ペア:

[(1, 201561460), (2, 100780730), (4, 50390365), (5, 40312292), (10, 20156146), (20, 10078073), (67, 3008380), (134, 1504190), (268, 752095), (335, 601676), (349, 577540), (431, 467660), (670, 300838), (698, 288770), (862, 233830), (1340, 150419), (1396, 144385), (1724, 116915), (1745, 115508), (2155, 93532), (3490, 57754), (4310, 46766), (6980, 28877), (8620, 23383)]