79904840

素因数分解:

$2^3\times 5^1\times {\mathrm{1091}}^1\times {\mathrm{1831}}^1$

素因数の和:2933

約数の個数: 32

約数和(自身を含む): 180048960

約数和(自身を除く): 100144120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1091, 1831, 2182, 3662, 4364, 5455, 7324, 8728, 9155, 10910, 14648, 18310, 21820, 36620, 43640, 73240, 1997621, 3995242, 7990484, 9988105, 15980968, 19976210, 39952420, 79904840]

約数ペア:

[(1, 79904840), (2, 39952420), (4, 19976210), (5, 15980968), (8, 9988105), (10, 7990484), (20, 3995242), (40, 1997621), (1091, 73240), (1831, 43640), (2182, 36620), (3662, 21820), (4364, 18310), (5455, 14648), (7324, 10910), (8728, 9155)]