20373340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{617}}^1$

素因数の和:766

約数の個数: 48

約数和(自身を含む): 46513152

約数和(自身を除く): 26139812

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 127, 130, 254, 260, 508, 617, 635, 1234, 1270, 1651, 2468, 2540, 3085, 3302, 6170, 6604, 8021, 8255, 12340, 16042, 16510, 32084, 33020, 40105, 78359, 80210, 156718, 160420, 313436, 391795, 783590, 1018667, 1567180, 2037334, 4074668, 5093335, 10186670, 20373340]

約数ペア:

[(1, 20373340), (2, 10186670), (4, 5093335), (5, 4074668), (10, 2037334), (13, 1567180), (20, 1018667), (26, 783590), (52, 391795), (65, 313436), (127, 160420), (130, 156718), (254, 80210), (260, 78359), (508, 40105), (617, 33020), (635, 32084), (1234, 16510), (1270, 16042), (1651, 12340), (2468, 8255), (2540, 8021), (3085, 6604), (3302, 6170)]