28223260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{1487}}^1$

素因数の和:1582

約数の個数: 48

約数和(自身を含む): 64745856

約数和(自身を除く): 36522596

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 73, 130, 146, 260, 292, 365, 730, 949, 1460, 1487, 1898, 2974, 3796, 4745, 5948, 7435, 9490, 14870, 18980, 19331, 29740, 38662, 77324, 96655, 108551, 193310, 217102, 386620, 434204, 542755, 1085510, 1411163, 2171020, 2822326, 5644652, 7055815, 14111630, 28223260]

約数ペア:

[(1, 28223260), (2, 14111630), (4, 7055815), (5, 5644652), (10, 2822326), (13, 2171020), (20, 1411163), (26, 1085510), (52, 542755), (65, 434204), (73, 386620), (130, 217102), (146, 193310), (260, 108551), (292, 96655), (365, 77324), (730, 38662), (949, 29740), (1460, 19331), (1487, 18980), (1898, 14870), (2974, 9490), (3796, 7435), (4745, 5948)]