542840

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{331}}^1$

素因数の和:383

約数の個数: 32

約数和(自身を含む): 1254960

約数和(自身を除く): 712120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 331, 410, 662, 820, 1324, 1640, 1655, 2648, 3310, 6620, 13240, 13571, 27142, 54284, 67855, 108568, 135710, 271420, 542840]

約数ペア:

[(1, 542840), (2, 271420), (4, 135710), (5, 108568), (8, 67855), (10, 54284), (20, 27142), (40, 13571), (41, 13240), (82, 6620), (164, 3310), (205, 2648), (328, 1655), (331, 1640), (410, 1324), (662, 820)]