898103660

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{401}}^1\times {\mathrm{991}}^1$

素因数の和:1514

約数の個数: 48

約数和(自身を含む): 1909377792

約数和(自身を除く): 1011274132

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 401, 452, 565, 802, 991, 1130, 1604, 1982, 2005, 2260, 3964, 4010, 4955, 8020, 9910, 19820, 45313, 90626, 111983, 181252, 223966, 226565, 397391, 447932, 453130, 559915, 794782, 906260, 1119830, 1589564, 1986955, 2239660, 3973910, 7947820, 44905183, 89810366, 179620732, 224525915, 449051830, 898103660]

約数ペア:

[(1, 898103660), (2, 449051830), (4, 224525915), (5, 179620732), (10, 89810366), (20, 44905183), (113, 7947820), (226, 3973910), (401, 2239660), (452, 1986955), (565, 1589564), (802, 1119830), (991, 906260), (1130, 794782), (1604, 559915), (1982, 453130), (2005, 447932), (2260, 397391), (3964, 226565), (4010, 223966), (4955, 181252), (8020, 111983), (9910, 90626), (19820, 45313)]