20309040

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:507

約数の個数: 120

約数和(自身を含む): 69386928

約数和(自身を除く): 49077888

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 67, 72, 80, 90, 120, 134, 144, 180, 201, 240, 268, 335, 360, 402, 421, 536, 603, 670, 720, 804, 842, 1005, 1072, 1206, 1263, 1340, 1608, 1684, 2010, 2105, 2412, 2526, 2680, 3015, 3216, 3368, 3789, 4020, 4210, 4824, 5052, 5360, 6030, 6315, 6736, 7578, 8040, 8420, 9648, 10104, 12060, 12630, 15156, 16080, 16840, 18945, 20208, 24120, 25260, 28207, 30312, 33680, 37890, 48240, 50520, 56414, 60624, 75780, 84621, 101040, 112828, 141035, 151560, 169242, 225656, 253863, 282070, 303120, 338484, 423105, 451312, 507726, 564140, 676968, 846210, 1015452, 1128280, 1269315, 1353936, 1692420, 2030904, 2256560, 2538630, 3384840, 4061808, 5077260, 6769680, 10154520, 20309040]

約数ペア:

[(1, 20309040), (2, 10154520), (3, 6769680), (4, 5077260), (5, 4061808), (6, 3384840), (8, 2538630), (9, 2256560), (10, 2030904), (12, 1692420), (15, 1353936), (16, 1269315), (18, 1128280), (20, 1015452), (24, 846210), (30, 676968), (36, 564140), (40, 507726), (45, 451312), (48, 423105), (60, 338484), (67, 303120), (72, 282070), (80, 253863), (90, 225656), (120, 169242), (134, 151560), (144, 141035), (180, 112828), (201, 101040), (240, 84621), (268, 75780), (335, 60624), (360, 56414), (402, 50520), (421, 48240), (536, 37890), (603, 33680), (670, 30312), (720, 28207), (804, 25260), (842, 24120), (1005, 20208), (1072, 18945), (1206, 16840), (1263, 16080), (1340, 15156), (1608, 12630), (1684, 12060), (2010, 10104), (2105, 9648), (2412, 8420), (2526, 8040), (2680, 7578), (3015, 6736), (3216, 6315), (3368, 6030), (3789, 5360), (4020, 5052), (4210, 4824)]