20807460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{115597}}^1$

素因数の和:115612

約数の個数: 36

約数和(自身を含む): 63116508

約数和(自身を除く): 42309048

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 115597, 231194, 346791, 462388, 577985, 693582, 1040373, 1155970, 1387164, 1733955, 2080746, 2311940, 3467910, 4161492, 5201865, 6935820, 10403730, 20807460]

約数ペア:

[(1, 20807460), (2, 10403730), (3, 6935820), (4, 5201865), (5, 4161492), (6, 3467910), (9, 2311940), (10, 2080746), (12, 1733955), (15, 1387164), (18, 1155970), (20, 1040373), (30, 693582), (36, 577985), (45, 462388), (60, 346791), (90, 231194), (180, 115597)]