28789300

素因数分解:

$2^2\times 5^2\times {\mathrm{223}}^1\times {\mathrm{1291}}^1$

素因数の和:1528

約数の個数: 36

約数和(自身を含む): 62801536

約数和(自身を除く): 34012236

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 223, 446, 892, 1115, 1291, 2230, 2582, 4460, 5164, 5575, 6455, 11150, 12910, 22300, 25820, 32275, 64550, 129100, 287893, 575786, 1151572, 1439465, 2878930, 5757860, 7197325, 14394650, 28789300]

約数ペア:

[(1, 28789300), (2, 14394650), (4, 7197325), (5, 5757860), (10, 2878930), (20, 1439465), (25, 1151572), (50, 575786), (100, 287893), (223, 129100), (446, 64550), (892, 32275), (1115, 25820), (1291, 22300), (2230, 12910), (2582, 11150), (4460, 6455), (5164, 5575)]