65911840

素因数分解:

$2^5\times 5^1\times {\mathrm{491}}^1\times {\mathrm{839}}^1$

素因数の和:1345

約数の個数: 48

約数和(自身を含む): 156219840

約数和(自身を除く): 90308000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 491, 839, 982, 1678, 1964, 2455, 3356, 3928, 4195, 4910, 6712, 7856, 8390, 9820, 13424, 15712, 16780, 19640, 26848, 33560, 39280, 67120, 78560, 134240, 411949, 823898, 1647796, 2059745, 3295592, 4119490, 6591184, 8238980, 13182368, 16477960, 32955920, 65911840]

約数ペア:

[(1, 65911840), (2, 32955920), (4, 16477960), (5, 13182368), (8, 8238980), (10, 6591184), (16, 4119490), (20, 3295592), (32, 2059745), (40, 1647796), (80, 823898), (160, 411949), (491, 134240), (839, 78560), (982, 67120), (1678, 39280), (1964, 33560), (2455, 26848), (3356, 19640), (3928, 16780), (4195, 15712), (4910, 13424), (6712, 9820), (7856, 8390)]