71528210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{18973}}^1$

素因数の和:19022

約数の個数: 32

約数和(自身を含む): 143443440

約数和(自身を除く): 71915230

約数列:

[1, 2, 5, 10, 13, 26, 29, 58, 65, 130, 145, 290, 377, 754, 1885, 3770, 18973, 37946, 94865, 189730, 246649, 493298, 550217, 1100434, 1233245, 2466490, 2751085, 5502170, 7152821, 14305642, 35764105, 71528210]

約数ペア:

[(1, 71528210), (2, 35764105), (5, 14305642), (10, 7152821), (13, 5502170), (26, 2751085), (29, 2466490), (58, 1233245), (65, 1100434), (130, 550217), (145, 493298), (290, 246649), (377, 189730), (754, 94865), (1885, 37946), (3770, 18973)]