81191890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{15233}}^1$

素因数の和:15294

約数の個数: 32

約数和(自身を含む): 161236656

約数和(自身を除く): 80044766

約数列:

[1, 2, 5, 10, 13, 26, 41, 65, 82, 130, 205, 410, 533, 1066, 2665, 5330, 15233, 30466, 76165, 152330, 198029, 396058, 624553, 990145, 1249106, 1980290, 3122765, 6245530, 8119189, 16238378, 40595945, 81191890]

約数ペア:

[(1, 81191890), (2, 40595945), (5, 16238378), (10, 8119189), (13, 6245530), (26, 3122765), (41, 1980290), (65, 1249106), (82, 990145), (130, 624553), (205, 396058), (410, 198029), (533, 152330), (1066, 76165), (2665, 30466), (5330, 15233)]