1796679740

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1\times {\mathrm{1399}}^1$

素因数の和:1974

約数の個数: 48

約数和(自身を含む): 3809064000

約数和(自身を除く): 2012384260

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 409, 628, 785, 818, 1399, 1570, 1636, 2045, 2798, 3140, 4090, 5596, 6995, 8180, 13990, 27980, 64213, 128426, 219643, 256852, 321065, 439286, 572191, 642130, 878572, 1098215, 1144382, 1284260, 2196430, 2288764, 2860955, 4392860, 5721910, 11443820, 89833987, 179667974, 359335948, 449169935, 898339870, 1796679740]

約数ペア:

[(1, 1796679740), (2, 898339870), (4, 449169935), (5, 359335948), (10, 179667974), (20, 89833987), (157, 11443820), (314, 5721910), (409, 4392860), (628, 2860955), (785, 2288764), (818, 2196430), (1399, 1284260), (1570, 1144382), (1636, 1098215), (2045, 878572), (2798, 642130), (3140, 572191), (4090, 439286), (5596, 321065), (6995, 256852), (8180, 219643), (13990, 128426), (27980, 64213)]