28032220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1039}}^1$

素因数の和:1138

約数の個数: 48

約数和(自身を含む): 62899200

約数和(自身を除く): 34866980

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 71, 76, 95, 142, 190, 284, 355, 380, 710, 1039, 1349, 1420, 2078, 2698, 4156, 5195, 5396, 6745, 10390, 13490, 19741, 20780, 26980, 39482, 73769, 78964, 98705, 147538, 197410, 295076, 368845, 394820, 737690, 1401611, 1475380, 2803222, 5606444, 7008055, 14016110, 28032220]

約数ペア:

[(1, 28032220), (2, 14016110), (4, 7008055), (5, 5606444), (10, 2803222), (19, 1475380), (20, 1401611), (38, 737690), (71, 394820), (76, 368845), (95, 295076), (142, 197410), (190, 147538), (284, 98705), (355, 78964), (380, 73769), (710, 39482), (1039, 26980), (1349, 20780), (1420, 19741), (2078, 13490), (2698, 10390), (4156, 6745), (5195, 5396)]