8917780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 19595520

約数和(自身を除く): 10677740

約数列:

[1, 2, 4, 5, 10, 20, 47, 53, 94, 106, 179, 188, 212, 235, 265, 358, 470, 530, 716, 895, 940, 1060, 1790, 2491, 3580, 4982, 8413, 9487, 9964, 12455, 16826, 18974, 24910, 33652, 37948, 42065, 47435, 49820, 84130, 94870, 168260, 189740, 445889, 891778, 1783556, 2229445, 4458890, 8917780]

約数ペア:

[(1, 8917780), (2, 4458890), (4, 2229445), (5, 1783556), (10, 891778), (20, 445889), (47, 189740), (53, 168260), (94, 94870), (106, 84130), (179, 49820), (188, 47435), (212, 42065), (235, 37948), (265, 33652), (358, 24910), (470, 18974), (530, 16826), (716, 12455), (895, 9964), (940, 9487), (1060, 8413), (1790, 4982), (2491, 3580)]