18688930

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{617}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 36442224

約数和(自身を除く): 17753294

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 233, 466, 617, 1165, 1234, 2330, 3029, 3085, 6058, 6170, 8021, 15145, 16042, 30290, 40105, 80210, 143761, 287522, 718805, 1437610, 1868893, 3737786, 9344465, 18688930]

約数ペア:

[(1, 18688930), (2, 9344465), (5, 3737786), (10, 1868893), (13, 1437610), (26, 718805), (65, 287522), (130, 143761), (233, 80210), (466, 40105), (617, 30290), (1165, 16042), (1234, 15145), (2330, 8021), (3029, 6170), (3085, 6058)]