8720220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:195

約数の個数: 96

約数和(自身を含む): 26127360

約数和(自身を除く): 17407140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 71, 89, 92, 115, 138, 142, 178, 213, 230, 267, 276, 284, 345, 355, 356, 426, 445, 460, 534, 690, 710, 852, 890, 1065, 1068, 1335, 1380, 1420, 1633, 1780, 2047, 2130, 2670, 3266, 4094, 4260, 4899, 5340, 6141, 6319, 6532, 8165, 8188, 9798, 10235, 12282, 12638, 16330, 18957, 19596, 20470, 24495, 24564, 25276, 30705, 31595, 32660, 37914, 40940, 48990, 61410, 63190, 75828, 94785, 97980, 122820, 126380, 145337, 189570, 290674, 379140, 436011, 581348, 726685, 872022, 1453370, 1744044, 2180055, 2906740, 4360110, 8720220]

約数ペア:

[(1, 8720220), (2, 4360110), (3, 2906740), (4, 2180055), (5, 1744044), (6, 1453370), (10, 872022), (12, 726685), (15, 581348), (20, 436011), (23, 379140), (30, 290674), (46, 189570), (60, 145337), (69, 126380), (71, 122820), (89, 97980), (92, 94785), (115, 75828), (138, 63190), (142, 61410), (178, 48990), (213, 40940), (230, 37914), (267, 32660), (276, 31595), (284, 30705), (345, 25276), (355, 24564), (356, 24495), (426, 20470), (445, 19596), (460, 18957), (534, 16330), (690, 12638), (710, 12282), (852, 10235), (890, 9798), (1065, 8188), (1068, 8165), (1335, 6532), (1380, 6319), (1420, 6141), (1633, 5340), (1780, 4899), (2047, 4260), (2130, 4094), (2670, 3266)]