18926180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{10399}}^1$

素因数の和:10428

約数の個数: 48

約数和(自身を含む): 48921600

約数和(自身を除く): 29995420

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 10399, 20798, 41596, 51995, 72793, 103990, 135187, 145586, 207980, 270374, 291172, 363965, 540748, 675935, 727930, 946309, 1351870, 1455860, 1892618, 2703740, 3785236, 4731545, 9463090, 18926180]

約数ペア:

[(1, 18926180), (2, 9463090), (4, 4731545), (5, 3785236), (7, 2703740), (10, 1892618), (13, 1455860), (14, 1351870), (20, 946309), (26, 727930), (28, 675935), (35, 540748), (52, 363965), (65, 291172), (70, 270374), (91, 207980), (130, 145586), (140, 135187), (182, 103990), (260, 72793), (364, 51995), (455, 41596), (910, 20798), (1820, 10399)]