19589940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{2531}}^1$

素因数の和:2589

約数の個数: 72

約数和(自身を含む): 60828768

約数和(自身を除く): 41238828

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2531, 2580, 3870, 5062, 7593, 7740, 10124, 12655, 15186, 22779, 25310, 30372, 37965, 45558, 50620, 75930, 91116, 108833, 113895, 151860, 217666, 227790, 326499, 435332, 455580, 544165, 652998, 979497, 1088330, 1305996, 1632495, 1958994, 2176660, 3264990, 3917988, 4897485, 6529980, 9794970, 19589940]

約数ペア:

[(1, 19589940), (2, 9794970), (3, 6529980), (4, 4897485), (5, 3917988), (6, 3264990), (9, 2176660), (10, 1958994), (12, 1632495), (15, 1305996), (18, 1088330), (20, 979497), (30, 652998), (36, 544165), (43, 455580), (45, 435332), (60, 326499), (86, 227790), (90, 217666), (129, 151860), (172, 113895), (180, 108833), (215, 91116), (258, 75930), (387, 50620), (430, 45558), (516, 37965), (645, 30372), (774, 25310), (860, 22779), (1290, 15186), (1548, 12655), (1935, 10124), (2531, 7740), (2580, 7593), (3870, 5062)]