64816780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{653}}^1\times {\mathrm{709}}^1$

素因数の和:1378

約数の個数: 48

約数和(自身を含む): 156018240

約数和(自身を除く): 91201460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 653, 709, 1306, 1418, 2612, 2836, 3265, 3545, 4571, 4963, 6530, 7090, 9142, 9926, 13060, 14180, 18284, 19852, 22855, 24815, 45710, 49630, 91420, 99260, 462977, 925954, 1851908, 2314885, 3240839, 4629770, 6481678, 9259540, 12963356, 16204195, 32408390, 64816780]

約数ペア:

[(1, 64816780), (2, 32408390), (4, 16204195), (5, 12963356), (7, 9259540), (10, 6481678), (14, 4629770), (20, 3240839), (28, 2314885), (35, 1851908), (70, 925954), (140, 462977), (653, 99260), (709, 91420), (1306, 49630), (1418, 45710), (2612, 24815), (2836, 22855), (3265, 19852), (3545, 18284), (4571, 14180), (4963, 13060), (6530, 9926), (7090, 9142)]