179913890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{81409}}^1$

素因数の和:81446

約数の個数: 32

約数和(自身を含む): 369275760

約数和(自身を除く): 189361870

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 81409, 162818, 407045, 814090, 1058317, 1383953, 2116634, 2767906, 5291585, 6919765, 10583170, 13839530, 17991389, 35982778, 89956945, 179913890]

約数ペア:

[(1, 179913890), (2, 89956945), (5, 35982778), (10, 17991389), (13, 13839530), (17, 10583170), (26, 6919765), (34, 5291585), (65, 2767906), (85, 2116634), (130, 1383953), (170, 1058317), (221, 814090), (442, 407045), (1105, 162818), (2210, 81409)]