56521000

素因数分解:

$2^3\times 5^3\times {\mathrm{29}}^1\times {\mathrm{1949}}^1$

素因数の和:1999

約数の個数: 64

約数和(自身を含む): 136890000

約数和(自身を除く): 80369000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 29, 40, 50, 58, 100, 116, 125, 145, 200, 232, 250, 290, 500, 580, 725, 1000, 1160, 1450, 1949, 2900, 3625, 3898, 5800, 7250, 7796, 9745, 14500, 15592, 19490, 29000, 38980, 48725, 56521, 77960, 97450, 113042, 194900, 226084, 243625, 282605, 389800, 452168, 487250, 565210, 974500, 1130420, 1413025, 1949000, 2260840, 2826050, 5652100, 7065125, 11304200, 14130250, 28260500, 56521000]

約数ペア:

[(1, 56521000), (2, 28260500), (4, 14130250), (5, 11304200), (8, 7065125), (10, 5652100), (20, 2826050), (25, 2260840), (29, 1949000), (40, 1413025), (50, 1130420), (58, 974500), (100, 565210), (116, 487250), (125, 452168), (145, 389800), (200, 282605), (232, 243625), (250, 226084), (290, 194900), (500, 113042), (580, 97450), (725, 77960), (1000, 56521), (1160, 48725), (1450, 38980), (1949, 29000), (2900, 19490), (3625, 15592), (3898, 14500), (5800, 9745), (7250, 7796)]