388632010

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{21821}}^1$

素因数の和:21978

約数の個数: 32

約数和(自身を含む): 758881872

約数和(自身を除く): 370249862

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1370, 1781, 3562, 8905, 17810, 21821, 43642, 109105, 218210, 283673, 567346, 1418365, 2836730, 2989477, 5978954, 14947385, 29894770, 38863201, 77726402, 194316005, 388632010]

約数ペア:

[(1, 388632010), (2, 194316005), (5, 77726402), (10, 38863201), (13, 29894770), (26, 14947385), (65, 5978954), (130, 2989477), (137, 2836730), (274, 1418365), (685, 567346), (1370, 283673), (1781, 218210), (3562, 109105), (8905, 43642), (17810, 21821)]