128638680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{2621}}^1$

素因数の和:3044

約数の個数: 64

約数和(自身を含む): 387007200

約数和(自身を除く): 258368520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 409, 818, 1227, 1636, 2045, 2454, 2621, 3272, 4090, 4908, 5242, 6135, 7863, 8180, 9816, 10484, 12270, 13105, 15726, 16360, 20968, 24540, 26210, 31452, 39315, 49080, 52420, 62904, 78630, 104840, 157260, 314520, 1071989, 2143978, 3215967, 4287956, 5359945, 6431934, 8575912, 10719890, 12863868, 16079835, 21439780, 25727736, 32159670, 42879560, 64319340, 128638680]

約数ペア:

[(1, 128638680), (2, 64319340), (3, 42879560), (4, 32159670), (5, 25727736), (6, 21439780), (8, 16079835), (10, 12863868), (12, 10719890), (15, 8575912), (20, 6431934), (24, 5359945), (30, 4287956), (40, 3215967), (60, 2143978), (120, 1071989), (409, 314520), (818, 157260), (1227, 104840), (1636, 78630), (2045, 62904), (2454, 52420), (2621, 49080), (3272, 39315), (4090, 31452), (4908, 26210), (5242, 24540), (6135, 20968), (7863, 16360), (8180, 15726), (9816, 13105), (10484, 12270)]