20510940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{167}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 60963840

約数和(自身を除く): 40452900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 89, 92, 115, 138, 167, 178, 230, 267, 276, 334, 345, 356, 445, 460, 501, 534, 668, 690, 835, 890, 1002, 1068, 1335, 1380, 1670, 1780, 2004, 2047, 2505, 2670, 3340, 3841, 4094, 5010, 5340, 6141, 7682, 8188, 10020, 10235, 11523, 12282, 14863, 15364, 19205, 20470, 23046, 24564, 29726, 30705, 38410, 40940, 44589, 46092, 57615, 59452, 61410, 74315, 76820, 89178, 115230, 122820, 148630, 178356, 222945, 230460, 297260, 341849, 445890, 683698, 891780, 1025547, 1367396, 1709245, 2051094, 3418490, 4102188, 5127735, 6836980, 10255470, 20510940]

約数ペア:

[(1, 20510940), (2, 10255470), (3, 6836980), (4, 5127735), (5, 4102188), (6, 3418490), (10, 2051094), (12, 1709245), (15, 1367396), (20, 1025547), (23, 891780), (30, 683698), (46, 445890), (60, 341849), (69, 297260), (89, 230460), (92, 222945), (115, 178356), (138, 148630), (167, 122820), (178, 115230), (230, 89178), (267, 76820), (276, 74315), (334, 61410), (345, 59452), (356, 57615), (445, 46092), (460, 44589), (501, 40940), (534, 38410), (668, 30705), (690, 29726), (835, 24564), (890, 23046), (1002, 20470), (1068, 19205), (1335, 15364), (1380, 14863), (1670, 12282), (1780, 11523), (2004, 10235), (2047, 10020), (2505, 8188), (2670, 7682), (3340, 6141), (3841, 5340), (4094, 5010)]