81087120

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{112621}}^1$

素因数の和:112640

約数の個数: 60

約数和(自身を含む): 272319996

約数和(自身を除く): 191232876

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 112621, 225242, 337863, 450484, 563105, 675726, 900968, 1013589, 1126210, 1351452, 1689315, 1801936, 2027178, 2252420, 2702904, 3378630, 4054356, 4504840, 5067945, 5405808, 6757260, 8108712, 9009680, 10135890, 13514520, 16217424, 20271780, 27029040, 40543560, 81087120]

約数ペア:

[(1, 81087120), (2, 40543560), (3, 27029040), (4, 20271780), (5, 16217424), (6, 13514520), (8, 10135890), (9, 9009680), (10, 8108712), (12, 6757260), (15, 5405808), (16, 5067945), (18, 4504840), (20, 4054356), (24, 3378630), (30, 2702904), (36, 2252420), (40, 2027178), (45, 1801936), (48, 1689315), (60, 1351452), (72, 1126210), (80, 1013589), (90, 900968), (120, 675726), (144, 563105), (180, 450484), (240, 337863), (360, 225242), (720, 112621)]