64021665

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{1051}}^1$

素因数の和:1221

約数の個数: 32

約数和(自身を含む): 106647552

約数和(自身を除く): 42625887

約数列:

[1, 3, 5, 15, 31, 93, 131, 155, 393, 465, 655, 1051, 1965, 3153, 4061, 5255, 12183, 15765, 20305, 32581, 60915, 97743, 137681, 162905, 413043, 488715, 688405, 2065215, 4268111, 12804333, 21340555, 64021665]

約数ペア:

[(1, 64021665), (3, 21340555), (5, 12804333), (15, 4268111), (31, 2065215), (93, 688405), (131, 488715), (155, 413043), (393, 162905), (465, 137681), (655, 97743), (1051, 60915), (1965, 32581), (3153, 20305), (4061, 15765), (5255, 12183)]