11987140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{103}}^1$

素因数の和:169

約数の個数: 72

約数和(自身を含む): 28986048

約数和(自身を除く): 16998908

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 103, 110, 115, 206, 220, 230, 253, 412, 460, 506, 515, 529, 1012, 1030, 1058, 1133, 1265, 2060, 2116, 2266, 2369, 2530, 2645, 4532, 4738, 5060, 5290, 5665, 5819, 9476, 10580, 11330, 11638, 11845, 22660, 23276, 23690, 26059, 29095, 47380, 52118, 54487, 58190, 104236, 108974, 116380, 130295, 217948, 260590, 272435, 521180, 544870, 599357, 1089740, 1198714, 2397428, 2996785, 5993570, 11987140]

約数ペア:

[(1, 11987140), (2, 5993570), (4, 2996785), (5, 2397428), (10, 1198714), (11, 1089740), (20, 599357), (22, 544870), (23, 521180), (44, 272435), (46, 260590), (55, 217948), (92, 130295), (103, 116380), (110, 108974), (115, 104236), (206, 58190), (220, 54487), (230, 52118), (253, 47380), (412, 29095), (460, 26059), (506, 23690), (515, 23276), (529, 22660), (1012, 11845), (1030, 11638), (1058, 11330), (1133, 10580), (1265, 9476), (2060, 5819), (2116, 5665), (2266, 5290), (2369, 5060), (2530, 4738), (2645, 4532)]