64231665

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{991}}^1$

素因数の和:1177

約数の個数: 32

約数和(自身を含む): 107136000

約数和(自身を除く): 42904335

約数列:

[1, 3, 5, 15, 29, 87, 145, 149, 435, 447, 745, 991, 2235, 2973, 4321, 4955, 12963, 14865, 21605, 28739, 64815, 86217, 143695, 147659, 431085, 442977, 738295, 2214885, 4282111, 12846333, 21410555, 64231665]

約数ペア:

[(1, 64231665), (3, 21410555), (5, 12846333), (15, 4282111), (29, 2214885), (87, 738295), (145, 442977), (149, 431085), (435, 147659), (447, 143695), (745, 86217), (991, 64815), (2235, 28739), (2973, 21605), (4321, 14865), (4955, 12963)]