40513850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{397}}^1$

素因数の和:579

約数の個数: 48

約数和(自身を含む): 81874968

約数和(自身を除く): 41361118

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 157, 314, 325, 397, 650, 785, 794, 1570, 1985, 2041, 3925, 3970, 4082, 5161, 7850, 9925, 10205, 10322, 19850, 20410, 25805, 51025, 51610, 62329, 102050, 124658, 129025, 258050, 311645, 623290, 810277, 1558225, 1620554, 3116450, 4051385, 8102770, 20256925, 40513850]

約数ペア:

[(1, 40513850), (2, 20256925), (5, 8102770), (10, 4051385), (13, 3116450), (25, 1620554), (26, 1558225), (50, 810277), (65, 623290), (130, 311645), (157, 258050), (314, 129025), (325, 124658), (397, 102050), (650, 62329), (785, 51610), (794, 51025), (1570, 25805), (1985, 20410), (2041, 19850), (3925, 10322), (3970, 10205), (4082, 9925), (5161, 7850)]