621649485

素因数分解:

$3^4\times 5^1\times {\mathrm{761}}^1\times {\mathrm{2017}}^1$

素因数の和:2795

約数の個数: 40

約数和(自身を含む): 1116381816

約数和(自身を除く): 494732331

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 761, 2017, 2283, 3805, 6051, 6849, 10085, 11415, 18153, 20547, 30255, 34245, 54459, 61641, 90765, 102735, 163377, 272295, 308205, 816885, 1534937, 4604811, 7674685, 13814433, 23024055, 41443299, 69072165, 124329897, 207216495, 621649485]

約数ペア:

[(1, 621649485), (3, 207216495), (5, 124329897), (9, 69072165), (15, 41443299), (27, 23024055), (45, 13814433), (81, 7674685), (135, 4604811), (405, 1534937), (761, 816885), (2017, 308205), (2283, 272295), (3805, 163377), (6051, 102735), (6849, 90765), (10085, 61641), (11415, 54459), (18153, 34245), (20547, 30255)]