18695300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{197}}^1$

素因数の和:297

約数の個数: 72

約数和(自身を含む): 44512776

約数和(自身を除く): 25817476

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 73, 100, 130, 146, 197, 260, 292, 325, 365, 394, 650, 730, 788, 949, 985, 1300, 1460, 1825, 1898, 1970, 2561, 3650, 3796, 3940, 4745, 4925, 5122, 7300, 9490, 9850, 10244, 12805, 14381, 18980, 19700, 23725, 25610, 28762, 47450, 51220, 57524, 64025, 71905, 94900, 128050, 143810, 186953, 256100, 287620, 359525, 373906, 719050, 747812, 934765, 1438100, 1869530, 3739060, 4673825, 9347650, 18695300]

約数ペア:

[(1, 18695300), (2, 9347650), (4, 4673825), (5, 3739060), (10, 1869530), (13, 1438100), (20, 934765), (25, 747812), (26, 719050), (50, 373906), (52, 359525), (65, 287620), (73, 256100), (100, 186953), (130, 143810), (146, 128050), (197, 94900), (260, 71905), (292, 64025), (325, 57524), (365, 51220), (394, 47450), (650, 28762), (730, 25610), (788, 23725), (949, 19700), (985, 18980), (1300, 14381), (1460, 12805), (1825, 10244), (1898, 9850), (1970, 9490), (2561, 7300), (3650, 5122), (3796, 4925), (3940, 4745)]