1978653400

素因数分解:

$2^3\times 5^2\times {\mathrm{541}}^1\times {\mathrm{18287}}^1$

素因数の和:18844

約数の個数: 48

約数和(自身を含む): 4609124640

約数和(自身を除く): 2630471240

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 541, 1082, 2164, 2705, 4328, 5410, 10820, 13525, 18287, 21640, 27050, 36574, 54100, 73148, 91435, 108200, 146296, 182870, 365740, 457175, 731480, 914350, 1828700, 3657400, 9893267, 19786534, 39573068, 49466335, 79146136, 98932670, 197865340, 247331675, 395730680, 494663350, 989326700, 1978653400]

約数ペア:

[(1, 1978653400), (2, 989326700), (4, 494663350), (5, 395730680), (8, 247331675), (10, 197865340), (20, 98932670), (25, 79146136), (40, 49466335), (50, 39573068), (100, 19786534), (200, 9893267), (541, 3657400), (1082, 1828700), (2164, 914350), (2705, 731480), (4328, 457175), (5410, 365740), (10820, 182870), (13525, 146296), (18287, 108200), (21640, 91435), (27050, 73148), (36574, 54100)]