898349660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{31699}}^1$

素因数の和:31830

約数の個数: 48

約数和(自身を含む): 2050356000

約数和(自身を除く): 1152006340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 436, 545, 1090, 1417, 2180, 2834, 5668, 7085, 14170, 28340, 31699, 63398, 126796, 158495, 316990, 412087, 633980, 824174, 1648348, 2060435, 3455191, 4120870, 6910382, 8241740, 13820764, 17275955, 34551910, 44917483, 69103820, 89834966, 179669932, 224587415, 449174830, 898349660]

約数ペア:

[(1, 898349660), (2, 449174830), (4, 224587415), (5, 179669932), (10, 89834966), (13, 69103820), (20, 44917483), (26, 34551910), (52, 17275955), (65, 13820764), (109, 8241740), (130, 6910382), (218, 4120870), (260, 3455191), (436, 2060435), (545, 1648348), (1090, 824174), (1417, 633980), (2180, 412087), (2834, 316990), (5668, 158495), (7085, 126796), (14170, 63398), (28340, 31699)]