19428540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{181}}^1\times {\mathrm{1789}}^1$

素因数の和:1982

約数の個数: 48

約数和(自身を含む): 54731040

約数和(自身を除く): 35302500

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 181, 362, 543, 724, 905, 1086, 1789, 1810, 2172, 2715, 3578, 3620, 5367, 5430, 7156, 8945, 10734, 10860, 17890, 21468, 26835, 35780, 53670, 107340, 323809, 647618, 971427, 1295236, 1619045, 1942854, 3238090, 3885708, 4857135, 6476180, 9714270, 19428540]

約数ペア:

[(1, 19428540), (2, 9714270), (3, 6476180), (4, 4857135), (5, 3885708), (6, 3238090), (10, 1942854), (12, 1619045), (15, 1295236), (20, 971427), (30, 647618), (60, 323809), (181, 107340), (362, 53670), (543, 35780), (724, 26835), (905, 21468), (1086, 17890), (1789, 10860), (1810, 10734), (2172, 8945), (2715, 7156), (3578, 5430), (3620, 5367)]