20218020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1597}}^1$

素因数の和:1820

約数の個数: 48

約数和(自身を含む): 56914368

約数和(自身を除く): 36696348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1597, 2110, 2532, 3165, 3194, 4220, 4791, 6330, 6388, 7985, 9582, 12660, 15970, 19164, 23955, 31940, 47910, 95820, 336967, 673934, 1010901, 1347868, 1684835, 2021802, 3369670, 4043604, 5054505, 6739340, 10109010, 20218020]

約数ペア:

[(1, 20218020), (2, 10109010), (3, 6739340), (4, 5054505), (5, 4043604), (6, 3369670), (10, 2021802), (12, 1684835), (15, 1347868), (20, 1010901), (30, 673934), (60, 336967), (211, 95820), (422, 47910), (633, 31940), (844, 23955), (1055, 19164), (1266, 15970), (1597, 12660), (2110, 9582), (2532, 7985), (3165, 6388), (3194, 6330), (4220, 4791)]