2018264521720

素因数分解:

$2^3\times 5^1\times {\mathrm{499}}^1\times {\mathrm{101115457}}^1$

素因数の和:101115967

約数の個数: 32

約数和(自身を含む): 4550195610000

約数和(自身を除く): 2531931088280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 499, 998, 1996, 2495, 3992, 4990, 9980, 19960, 101115457, 202230914, 404461828, 505577285, 808923656, 1011154570, 2022309140, 4044618280, 50456613043, 100913226086, 201826452172, 252283065215, 403652904344, 504566130430, 1009132260860, 2018264521720]

約数ペア:

[(1, 2018264521720), (2, 1009132260860), (4, 504566130430), (5, 403652904344), (8, 252283065215), (10, 201826452172), (20, 100913226086), (40, 50456613043), (499, 4044618280), (998, 2022309140), (1996, 1011154570), (2495, 808923656), (3992, 505577285), (4990, 404461828), (9980, 202230914), (19960, 101115457)]