1298059660

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1\times {\mathrm{1783}}^1$

素因数の和:2290

約数の個数: 48

約数和(自身を含む): 2764843200

約数和(自身を除く): 1466783540

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 409, 445, 818, 890, 1636, 1780, 1783, 2045, 3566, 4090, 7132, 8180, 8915, 17830, 35660, 36401, 72802, 145604, 158687, 182005, 317374, 364010, 634748, 728020, 729247, 793435, 1458494, 1586870, 2916988, 3173740, 3646235, 7292470, 14584940, 64902983, 129805966, 259611932, 324514915, 649029830, 1298059660]

約数ペア:

[(1, 1298059660), (2, 649029830), (4, 324514915), (5, 259611932), (10, 129805966), (20, 64902983), (89, 14584940), (178, 7292470), (356, 3646235), (409, 3173740), (445, 2916988), (818, 1586870), (890, 1458494), (1636, 793435), (1780, 729247), (1783, 728020), (2045, 634748), (3566, 364010), (4090, 317374), (7132, 182005), (8180, 158687), (8915, 145604), (17830, 72802), (35660, 36401)]