66591875

素因数分解:

$5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{491}}^1$

素因数の和:549

約数の個数: 40

約数和(自身を含む): 98368512

約数和(自身を除く): 31776637

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 491, 625, 775, 875, 1085, 2455, 3437, 3875, 4375, 5425, 12275, 15221, 17185, 19375, 27125, 61375, 76105, 85925, 106547, 135625, 306875, 380525, 429625, 532735, 1902625, 2148125, 2663675, 9513125, 13318375, 66591875]

約数ペア:

[(1, 66591875), (5, 13318375), (7, 9513125), (25, 2663675), (31, 2148125), (35, 1902625), (125, 532735), (155, 429625), (175, 380525), (217, 306875), (491, 135625), (625, 106547), (775, 85925), (875, 76105), (1085, 61375), (2455, 27125), (3437, 19375), (3875, 17185), (4375, 15221), (5425, 12275)]