19755720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{54877}}^1$

素因数の和:54894

約数の個数: 48

約数和(自身を含む): 64207260

約数和(自身を除く): 44451540

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 54877, 109754, 164631, 219508, 274385, 329262, 439016, 493893, 548770, 658524, 823155, 987786, 1097540, 1317048, 1646310, 1975572, 2195080, 2469465, 3292620, 3951144, 4938930, 6585240, 9877860, 19755720]

約数ペア:

[(1, 19755720), (2, 9877860), (3, 6585240), (4, 4938930), (5, 3951144), (6, 3292620), (8, 2469465), (9, 2195080), (10, 1975572), (12, 1646310), (15, 1317048), (18, 1097540), (20, 987786), (24, 823155), (30, 658524), (36, 548770), (40, 493893), (45, 439016), (60, 329262), (72, 274385), (90, 219508), (120, 164631), (180, 109754), (360, 54877)]