208176075

素因数分解:

$3^4\times 5^2\times {\mathrm{223}}^1\times {\mathrm{461}}^1$

素因数の和:706

約数の個数: 60

約数和(自身を含む): 388183488

約数和(自身を除く): 180007413

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 135, 223, 225, 405, 461, 669, 675, 1115, 1383, 2007, 2025, 2305, 3345, 4149, 5575, 6021, 6915, 10035, 11525, 12447, 16725, 18063, 20745, 30105, 34575, 37341, 50175, 62235, 90315, 102803, 103725, 150525, 186705, 308409, 311175, 451575, 514015, 925227, 933525, 1542045, 2570075, 2775681, 4626135, 7710225, 8327043, 13878405, 23130675, 41635215, 69392025, 208176075]

約数ペア:

[(1, 208176075), (3, 69392025), (5, 41635215), (9, 23130675), (15, 13878405), (25, 8327043), (27, 7710225), (45, 4626135), (75, 2775681), (81, 2570075), (135, 1542045), (223, 933525), (225, 925227), (405, 514015), (461, 451575), (669, 311175), (675, 308409), (1115, 186705), (1383, 150525), (2007, 103725), (2025, 102803), (2305, 90315), (3345, 62235), (4149, 50175), (5575, 37341), (6021, 34575), (6915, 30105), (10035, 20745), (11525, 18063), (12447, 16725)]