19498140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{727}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 59623200

約数和(自身を除く): 40125060

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 727, 745, 894, 1341, 1454, 1490, 1788, 2181, 2235, 2682, 2908, 2980, 3635, 4362, 4470, 5364, 6543, 6705, 7270, 8724, 8940, 10905, 13086, 13410, 14540, 21810, 26172, 26820, 32715, 43620, 65430, 108323, 130860, 216646, 324969, 433292, 541615, 649938, 974907, 1083230, 1299876, 1624845, 1949814, 2166460, 3249690, 3899628, 4874535, 6499380, 9749070, 19498140]

約数ペア:

[(1, 19498140), (2, 9749070), (3, 6499380), (4, 4874535), (5, 3899628), (6, 3249690), (9, 2166460), (10, 1949814), (12, 1624845), (15, 1299876), (18, 1083230), (20, 974907), (30, 649938), (36, 541615), (45, 433292), (60, 324969), (90, 216646), (149, 130860), (180, 108323), (298, 65430), (447, 43620), (596, 32715), (727, 26820), (745, 26172), (894, 21810), (1341, 14540), (1454, 13410), (1490, 13086), (1788, 10905), (2181, 8940), (2235, 8724), (2682, 7270), (2908, 6705), (2980, 6543), (3635, 5364), (4362, 4470)]