208929780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{128969}}^1$

素因数の和:128990

約数の個数: 60

約数和(自身を含む): 655425540

約数和(自身を除く): 446495760

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 128969, 257938, 386907, 515876, 644845, 773814, 1160721, 1289690, 1547628, 1934535, 2321442, 2579380, 3482163, 3869070, 4642884, 5803605, 6964326, 7738140, 10446489, 11607210, 13928652, 17410815, 20892978, 23214420, 34821630, 41785956, 52232445, 69643260, 104464890, 208929780]

約数ペア:

[(1, 208929780), (2, 104464890), (3, 69643260), (4, 52232445), (5, 41785956), (6, 34821630), (9, 23214420), (10, 20892978), (12, 17410815), (15, 13928652), (18, 11607210), (20, 10446489), (27, 7738140), (30, 6964326), (36, 5803605), (45, 4642884), (54, 3869070), (60, 3482163), (81, 2579380), (90, 2321442), (108, 1934535), (135, 1547628), (162, 1289690), (180, 1160721), (270, 773814), (324, 644845), (405, 515876), (540, 386907), (810, 257938), (1620, 128969)]