20469870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{787}}^1$

素因数の和:834

約数の個数: 72

約数和(自身を含む): 56608344

約数和(自身を除く): 36138474

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 17, 18, 30, 34, 45, 51, 85, 90, 102, 153, 170, 255, 289, 306, 510, 578, 765, 787, 867, 1445, 1530, 1574, 1734, 2361, 2601, 2890, 3935, 4335, 4722, 5202, 7083, 7870, 8670, 11805, 13005, 13379, 14166, 23610, 26010, 26758, 35415, 40137, 66895, 70830, 80274, 120411, 133790, 200685, 227443, 240822, 401370, 454886, 602055, 682329, 1137215, 1204110, 1364658, 2046987, 2274430, 3411645, 4093974, 6823290, 10234935, 20469870]

約数ペア:

[(1, 20469870), (2, 10234935), (3, 6823290), (5, 4093974), (6, 3411645), (9, 2274430), (10, 2046987), (15, 1364658), (17, 1204110), (18, 1137215), (30, 682329), (34, 602055), (45, 454886), (51, 401370), (85, 240822), (90, 227443), (102, 200685), (153, 133790), (170, 120411), (255, 80274), (289, 70830), (306, 66895), (510, 40137), (578, 35415), (765, 26758), (787, 26010), (867, 23610), (1445, 14166), (1530, 13379), (1574, 13005), (1734, 11805), (2361, 8670), (2601, 7870), (2890, 7083), (3935, 5202), (4335, 4722)]