1438640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{367}}^1$

素因数の和:394

約数の個数: 60

約数和(自身を含む): 3901536

約数和(自身を除く): 2462896

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 367, 392, 490, 560, 734, 784, 980, 1468, 1835, 1960, 2569, 2936, 3670, 3920, 5138, 5872, 7340, 10276, 12845, 14680, 17983, 20552, 25690, 29360, 35966, 41104, 51380, 71932, 89915, 102760, 143864, 179830, 205520, 287728, 359660, 719320, 1438640]

約数ペア:

[(1, 1438640), (2, 719320), (4, 359660), (5, 287728), (7, 205520), (8, 179830), (10, 143864), (14, 102760), (16, 89915), (20, 71932), (28, 51380), (35, 41104), (40, 35966), (49, 29360), (56, 25690), (70, 20552), (80, 17983), (98, 14680), (112, 12845), (140, 10276), (196, 7340), (245, 5872), (280, 5138), (367, 3920), (392, 3670), (490, 2936), (560, 2569), (734, 1960), (784, 1835), (980, 1468)]