78690420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{145723}}^1$

素因数の和:145741

約数の個数: 48

約数和(自身を含む): 244816320

約数和(自身を除く): 166125900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 145723, 291446, 437169, 582892, 728615, 874338, 1311507, 1457230, 1748676, 2185845, 2623014, 2914460, 3934521, 4371690, 5246028, 6557535, 7869042, 8743380, 13115070, 15738084, 19672605, 26230140, 39345210, 78690420]

約数ペア:

[(1, 78690420), (2, 39345210), (3, 26230140), (4, 19672605), (5, 15738084), (6, 13115070), (9, 8743380), (10, 7869042), (12, 6557535), (15, 5246028), (18, 4371690), (20, 3934521), (27, 2914460), (30, 2623014), (36, 2185845), (45, 1748676), (54, 1457230), (60, 1311507), (90, 874338), (108, 728615), (135, 582892), (180, 437169), (270, 291446), (540, 145723)]