18819720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{857}}^1$

素因数の和:935

約数の個数: 96

約数和(自身を含む): 62239320

約数和(自身を除く): 43419600

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 61, 72, 90, 120, 122, 180, 183, 244, 305, 360, 366, 488, 549, 610, 732, 857, 915, 1098, 1220, 1464, 1714, 1830, 2196, 2440, 2571, 2745, 3428, 3660, 4285, 4392, 5142, 5490, 6856, 7320, 7713, 8570, 10284, 10980, 12855, 15426, 17140, 20568, 21960, 25710, 30852, 34280, 38565, 51420, 52277, 61704, 77130, 102840, 104554, 154260, 156831, 209108, 261385, 308520, 313662, 418216, 470493, 522770, 627324, 784155, 940986, 1045540, 1254648, 1568310, 1881972, 2091080, 2352465, 3136620, 3763944, 4704930, 6273240, 9409860, 18819720]

約数ペア:

[(1, 18819720), (2, 9409860), (3, 6273240), (4, 4704930), (5, 3763944), (6, 3136620), (8, 2352465), (9, 2091080), (10, 1881972), (12, 1568310), (15, 1254648), (18, 1045540), (20, 940986), (24, 784155), (30, 627324), (36, 522770), (40, 470493), (45, 418216), (60, 313662), (61, 308520), (72, 261385), (90, 209108), (120, 156831), (122, 154260), (180, 104554), (183, 102840), (244, 77130), (305, 61704), (360, 52277), (366, 51420), (488, 38565), (549, 34280), (610, 30852), (732, 25710), (857, 21960), (915, 20568), (1098, 17140), (1220, 15426), (1464, 12855), (1714, 10980), (1830, 10284), (2196, 8570), (2440, 7713), (2571, 7320), (2745, 6856), (3428, 5490), (3660, 5142), (4285, 4392)]