28885780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18757}}^1$

素因数の和:18784

約数の個数: 48

約数和(自身を含む): 75632256

約数和(自身を除く): 46746476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18757, 37514, 75028, 93785, 131299, 187570, 206327, 262598, 375140, 412654, 525196, 656495, 825308, 1031635, 1312990, 1444289, 2063270, 2625980, 2888578, 4126540, 5777156, 7221445, 14442890, 28885780]

約数ペア:

[(1, 28885780), (2, 14442890), (4, 7221445), (5, 5777156), (7, 4126540), (10, 2888578), (11, 2625980), (14, 2063270), (20, 1444289), (22, 1312990), (28, 1031635), (35, 825308), (44, 656495), (55, 525196), (70, 412654), (77, 375140), (110, 262598), (140, 206327), (154, 187570), (220, 131299), (308, 93785), (385, 75028), (770, 37514), (1540, 18757)]