199917080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{454357}}^1$

素因数の和:454379

約数の個数: 32

約数和(自身を含む): 490706640

約数和(自身を除く): 290789560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 454357, 908714, 1817428, 2271785, 3634856, 4543570, 4997927, 9087140, 9995854, 18174280, 19991708, 24989635, 39983416, 49979270, 99958540, 199917080]

約数ペア:

[(1, 199917080), (2, 99958540), (4, 49979270), (5, 39983416), (8, 24989635), (10, 19991708), (11, 18174280), (20, 9995854), (22, 9087140), (40, 4997927), (44, 4543570), (55, 3634856), (88, 2271785), (110, 1817428), (220, 908714), (440, 454357)]