42690420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{487}}^2$

素因数の和:989

約数の個数: 54

約数和(自身を含む): 129760722

約数和(自身を除く): 87070302

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 487, 974, 1461, 1948, 2435, 2922, 4383, 4870, 5844, 7305, 8766, 9740, 14610, 17532, 21915, 29220, 43830, 87660, 237169, 474338, 711507, 948676, 1185845, 1423014, 2134521, 2371690, 2846028, 3557535, 4269042, 4743380, 7115070, 8538084, 10672605, 14230140, 21345210, 42690420]

約数ペア:

[(1, 42690420), (2, 21345210), (3, 14230140), (4, 10672605), (5, 8538084), (6, 7115070), (9, 4743380), (10, 4269042), (12, 3557535), (15, 2846028), (18, 2371690), (20, 2134521), (30, 1423014), (36, 1185845), (45, 948676), (60, 711507), (90, 474338), (180, 237169), (487, 87660), (974, 43830), (1461, 29220), (1948, 21915), (2435, 17532), (2922, 14610), (4383, 9740), (4870, 8766), (5844, 7305)]