81050356

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{523}}^1$

素因数の和:640

約数の個数: 48

約数和(自身を含む): 156873024

約数和(自身を除く): 75822668

約数列:

[1, 2, 4, 17, 34, 43, 53, 68, 86, 106, 172, 212, 523, 731, 901, 1046, 1462, 1802, 2092, 2279, 2924, 3604, 4558, 8891, 9116, 17782, 22489, 27719, 35564, 38743, 44978, 55438, 77486, 89956, 110876, 154972, 382313, 471223, 764626, 942446, 1191917, 1529252, 1884892, 2383834, 4767668, 20262589, 40525178, 81050356]

約数ペア:

[(1, 81050356), (2, 40525178), (4, 20262589), (17, 4767668), (34, 2383834), (43, 1884892), (53, 1529252), (68, 1191917), (86, 942446), (106, 764626), (172, 471223), (212, 382313), (523, 154972), (731, 110876), (901, 89956), (1046, 77486), (1462, 55438), (1802, 44978), (2092, 38743), (2279, 35564), (2924, 27719), (3604, 22489), (4558, 17782), (8891, 9116)]