90660420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2531}}^1$

素因数の和:2745

約数の個数: 72

約数和(自身を含む): 276494400

約数和(自身を除く): 185833980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 199, 398, 597, 796, 995, 1194, 1791, 1990, 2388, 2531, 2985, 3582, 3980, 5062, 5970, 7164, 7593, 8955, 10124, 11940, 12655, 15186, 17910, 22779, 25310, 30372, 35820, 37965, 45558, 50620, 75930, 91116, 113895, 151860, 227790, 455580, 503669, 1007338, 1511007, 2014676, 2518345, 3022014, 4533021, 5036690, 6044028, 7555035, 9066042, 10073380, 15110070, 18132084, 22665105, 30220140, 45330210, 90660420]

約数ペア:

[(1, 90660420), (2, 45330210), (3, 30220140), (4, 22665105), (5, 18132084), (6, 15110070), (9, 10073380), (10, 9066042), (12, 7555035), (15, 6044028), (18, 5036690), (20, 4533021), (30, 3022014), (36, 2518345), (45, 2014676), (60, 1511007), (90, 1007338), (180, 503669), (199, 455580), (398, 227790), (597, 151860), (796, 113895), (995, 91116), (1194, 75930), (1791, 50620), (1990, 45558), (2388, 37965), (2531, 35820), (2985, 30372), (3582, 25310), (3980, 22779), (5062, 17910), (5970, 15186), (7164, 12655), (7593, 11940), (8955, 10124)]