18988550

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{239}}^1$

素因数の和:485

約数の個数: 48

約数和(自身を含む): 40711680

約数和(自身を除く): 21723130

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 175, 227, 239, 350, 454, 478, 1135, 1195, 1589, 1673, 2270, 2390, 3178, 3346, 5675, 5975, 7945, 8365, 11350, 11950, 15890, 16730, 39725, 41825, 54253, 79450, 83650, 108506, 271265, 379771, 542530, 759542, 1356325, 1898855, 2712650, 3797710, 9494275, 18988550]

約数ペア:

[(1, 18988550), (2, 9494275), (5, 3797710), (7, 2712650), (10, 1898855), (14, 1356325), (25, 759542), (35, 542530), (50, 379771), (70, 271265), (175, 108506), (227, 83650), (239, 79450), (350, 54253), (454, 41825), (478, 39725), (1135, 16730), (1195, 15890), (1589, 11950), (1673, 11350), (2270, 8365), (2390, 7945), (3178, 5975), (3346, 5675)]