128991520

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{16453}}^1$

素因数の和:16482

約数の個数: 72

約数和(自身を含む): 354517884

約数和(自身を除く): 225526364

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 16453, 32906, 65812, 82265, 115171, 131624, 164530, 230342, 263248, 329060, 460684, 526496, 575855, 658120, 806197, 921368, 1151710, 1316240, 1612394, 1842736, 2303420, 2632480, 3224788, 3685472, 4030985, 4606840, 6449576, 8061970, 9213680, 12899152, 16123940, 18427360, 25798304, 32247880, 64495760, 128991520]

約数ペア:

[(1, 128991520), (2, 64495760), (4, 32247880), (5, 25798304), (7, 18427360), (8, 16123940), (10, 12899152), (14, 9213680), (16, 8061970), (20, 6449576), (28, 4606840), (32, 4030985), (35, 3685472), (40, 3224788), (49, 2632480), (56, 2303420), (70, 1842736), (80, 1612394), (98, 1316240), (112, 1151710), (140, 921368), (160, 806197), (196, 658120), (224, 575855), (245, 526496), (280, 460684), (392, 329060), (490, 263248), (560, 230342), (784, 164530), (980, 131624), (1120, 115171), (1568, 82265), (1960, 65812), (3920, 32906), (7840, 16453)]