20460435

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1$

素因数の和:188

約数の個数: 64

約数和(自身を含む): 37739520

約数和(自身を除く): 17279085

約数列:

[1, 3, 5, 15, 17, 19, 41, 51, 57, 85, 95, 103, 123, 205, 255, 285, 309, 323, 515, 615, 697, 779, 969, 1545, 1615, 1751, 1957, 2091, 2337, 3485, 3895, 4223, 4845, 5253, 5871, 8755, 9785, 10455, 11685, 12669, 13243, 21115, 26265, 29355, 33269, 39729, 63345, 66215, 71791, 80237, 99807, 166345, 198645, 215373, 240711, 358955, 401185, 499035, 1076865, 1203555, 1364029, 4092087, 6820145, 20460435]

約数ペア:

[(1, 20460435), (3, 6820145), (5, 4092087), (15, 1364029), (17, 1203555), (19, 1076865), (41, 499035), (51, 401185), (57, 358955), (85, 240711), (95, 215373), (103, 198645), (123, 166345), (205, 99807), (255, 80237), (285, 71791), (309, 66215), (323, 63345), (515, 39729), (615, 33269), (697, 29355), (779, 26265), (969, 21115), (1545, 13243), (1615, 12669), (1751, 11685), (1957, 10455), (2091, 9785), (2337, 8755), (3485, 5871), (3895, 5253), (4223, 4845)]