1818720

素因数分解:

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

素因数の和:445

約数の個数: 96

約数和(自身を含む): 6380640

約数和(自身を除く): 4561920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 72, 80, 90, 96, 108, 120, 135, 144, 160, 180, 216, 240, 270, 288, 360, 421, 432, 480, 540, 720, 842, 864, 1080, 1263, 1440, 1684, 2105, 2160, 2526, 3368, 3789, 4210, 4320, 5052, 6315, 6736, 7578, 8420, 10104, 11367, 12630, 13472, 15156, 16840, 18945, 20208, 22734, 25260, 30312, 33680, 37890, 40416, 45468, 50520, 56835, 60624, 67360, 75780, 90936, 101040, 113670, 121248, 151560, 181872, 202080, 227340, 303120, 363744, 454680, 606240, 909360, 1818720]

約数ペア:

[(1, 1818720), (2, 909360), (3, 606240), (4, 454680), (5, 363744), (6, 303120), (8, 227340), (9, 202080), (10, 181872), (12, 151560), (15, 121248), (16, 113670), (18, 101040), (20, 90936), (24, 75780), (27, 67360), (30, 60624), (32, 56835), (36, 50520), (40, 45468), (45, 40416), (48, 37890), (54, 33680), (60, 30312), (72, 25260), (80, 22734), (90, 20208), (96, 18945), (108, 16840), (120, 15156), (135, 13472), (144, 12630), (160, 11367), (180, 10104), (216, 8420), (240, 7578), (270, 6736), (288, 6315), (360, 5052), (421, 4320), (432, 4210), (480, 3789), (540, 3368), (720, 2526), (842, 2160), (864, 2105), (1080, 1684), (1263, 1440)]