18999180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{1789}}^1$

素因数の和:1863

約数の個数: 72

約数和(自身を含む): 58640400

約数和(自身を除く): 39641220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 1789, 2124, 2655, 3540, 3578, 5310, 5367, 7156, 8945, 10620, 10734, 16101, 17890, 21468, 26835, 32202, 35780, 53670, 64404, 80505, 105551, 107340, 161010, 211102, 316653, 322020, 422204, 527755, 633306, 949959, 1055510, 1266612, 1583265, 1899918, 2111020, 3166530, 3799836, 4749795, 6333060, 9499590, 18999180]

約数ペア:

[(1, 18999180), (2, 9499590), (3, 6333060), (4, 4749795), (5, 3799836), (6, 3166530), (9, 2111020), (10, 1899918), (12, 1583265), (15, 1266612), (18, 1055510), (20, 949959), (30, 633306), (36, 527755), (45, 422204), (59, 322020), (60, 316653), (90, 211102), (118, 161010), (177, 107340), (180, 105551), (236, 80505), (295, 64404), (354, 53670), (531, 35780), (590, 32202), (708, 26835), (885, 21468), (1062, 17890), (1180, 16101), (1770, 10734), (1789, 10620), (2124, 8945), (2655, 7156), (3540, 5367), (3578, 5310)]