64808260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{1321}}^1$

素因数の和:1564

約数の個数: 48

約数和(自身を含む): 149248512

約数和(自身を除く): 84440252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 446, 892, 1115, 1321, 2230, 2453, 2642, 4460, 4906, 5284, 6605, 9812, 12265, 13210, 14531, 24530, 26420, 29062, 49060, 58124, 72655, 145310, 290620, 294583, 589166, 1178332, 1472915, 2945830, 3240413, 5891660, 6480826, 12961652, 16202065, 32404130, 64808260]

約数ペア:

[(1, 64808260), (2, 32404130), (4, 16202065), (5, 12961652), (10, 6480826), (11, 5891660), (20, 3240413), (22, 2945830), (44, 1472915), (55, 1178332), (110, 589166), (220, 294583), (223, 290620), (446, 145310), (892, 72655), (1115, 58124), (1321, 49060), (2230, 29062), (2453, 26420), (2642, 24530), (4460, 14531), (4906, 13210), (5284, 12265), (6605, 9812)]