18736420

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{11287}}^1$

素因数の和:11379

約数の個数: 24

約数和(自身を含む): 39824064

約数和(自身を除く): 21087644

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 11287, 22574, 45148, 56435, 112870, 225740, 936821, 1873642, 3747284, 4684105, 9368210, 18736420]

約数ペア:

[(1, 18736420), (2, 9368210), (4, 4684105), (5, 3747284), (10, 1873642), (20, 936821), (83, 225740), (166, 112870), (332, 56435), (415, 45148), (830, 22574), (1660, 11287)]