20536360

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:638

約数の個数: 64

約数和(自身を含む): 50536080

約数和(自身を除く): 29999720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 73, 104, 130, 146, 260, 292, 365, 520, 541, 584, 730, 949, 1082, 1460, 1898, 2164, 2705, 2920, 3796, 4328, 4745, 5410, 7033, 7592, 9490, 10820, 14066, 18980, 21640, 28132, 35165, 37960, 39493, 56264, 70330, 78986, 140660, 157972, 197465, 281320, 315944, 394930, 513409, 789860, 1026818, 1579720, 2053636, 2567045, 4107272, 5134090, 10268180, 20536360]

約数ペア:

[(1, 20536360), (2, 10268180), (4, 5134090), (5, 4107272), (8, 2567045), (10, 2053636), (13, 1579720), (20, 1026818), (26, 789860), (40, 513409), (52, 394930), (65, 315944), (73, 281320), (104, 197465), (130, 157972), (146, 140660), (260, 78986), (292, 70330), (365, 56264), (520, 39493), (541, 37960), (584, 35165), (730, 28132), (949, 21640), (1082, 18980), (1460, 14066), (1898, 10820), (2164, 9490), (2705, 7592), (2920, 7033), (3796, 5410), (4328, 4745)]