257019720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{4111}}^1$

素因数の和:4646

約数の個数: 64

約数和(自身を含む): 772727040

約数和(自身を除く): 515707320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 521, 1042, 1563, 2084, 2605, 3126, 4111, 4168, 5210, 6252, 7815, 8222, 10420, 12333, 12504, 15630, 16444, 20555, 20840, 24666, 31260, 32888, 41110, 49332, 61665, 62520, 82220, 98664, 123330, 164440, 246660, 493320, 2141831, 4283662, 6425493, 8567324, 10709155, 12850986, 17134648, 21418310, 25701972, 32127465, 42836620, 51403944, 64254930, 85673240, 128509860, 257019720]

約数ペア:

[(1, 257019720), (2, 128509860), (3, 85673240), (4, 64254930), (5, 51403944), (6, 42836620), (8, 32127465), (10, 25701972), (12, 21418310), (15, 17134648), (20, 12850986), (24, 10709155), (30, 8567324), (40, 6425493), (60, 4283662), (120, 2141831), (521, 493320), (1042, 246660), (1563, 164440), (2084, 123330), (2605, 98664), (3126, 82220), (4111, 62520), (4168, 61665), (5210, 49332), (6252, 41110), (7815, 32888), (8222, 31260), (10420, 24666), (12333, 20840), (12504, 20555), (15630, 16444)]