19784970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{367}}^1\times {\mathrm{599}}^1$

素因数の和:979

約数の個数: 48

約数和(自身を含む): 51667200

約数和(自身を除く): 31882230

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 367, 599, 734, 1101, 1198, 1797, 1835, 2202, 2995, 3303, 3594, 3670, 5391, 5505, 5990, 6606, 8985, 10782, 11010, 16515, 17970, 26955, 33030, 53910, 219833, 439666, 659499, 1099165, 1318998, 1978497, 2198330, 3297495, 3956994, 6594990, 9892485, 19784970]

約数ペア:

[(1, 19784970), (2, 9892485), (3, 6594990), (5, 3956994), (6, 3297495), (9, 2198330), (10, 1978497), (15, 1318998), (18, 1099165), (30, 659499), (45, 439666), (90, 219833), (367, 53910), (599, 33030), (734, 26955), (1101, 17970), (1198, 16515), (1797, 11010), (1835, 10782), (2202, 8985), (2995, 6606), (3303, 5990), (3594, 5505), (3670, 5391)]