1215404740

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{75679}}^1$

素因数の和:75772

約数の個数: 48

約数和(自身を含む): 2822561280

約数和(自身を除く): 1607156540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 73, 110, 146, 220, 292, 365, 730, 803, 1460, 1606, 3212, 4015, 8030, 16060, 75679, 151358, 302716, 378395, 756790, 832469, 1513580, 1664938, 3329876, 4162345, 5524567, 8324690, 11049134, 16649380, 22098268, 27622835, 55245670, 60770237, 110491340, 121540474, 243080948, 303851185, 607702370, 1215404740]

約数ペア:

[(1, 1215404740), (2, 607702370), (4, 303851185), (5, 243080948), (10, 121540474), (11, 110491340), (20, 60770237), (22, 55245670), (44, 27622835), (55, 22098268), (73, 16649380), (110, 11049134), (146, 8324690), (220, 5524567), (292, 4162345), (365, 3329876), (730, 1664938), (803, 1513580), (1460, 832469), (1606, 756790), (3212, 378395), (4015, 302716), (8030, 151358), (16060, 75679)]