138675880

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{70753}}^1$

素因数の和:70778

約数の個数: 48

約数和(自身を含む): 362968020

約数和(自身を除く): 224292140

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 70753, 141506, 283012, 353765, 495271, 566024, 707530, 990542, 1415060, 1981084, 2476355, 2830120, 3466897, 3962168, 4952710, 6933794, 9905420, 13867588, 17334485, 19810840, 27735176, 34668970, 69337940, 138675880]

約数ペア:

[(1, 138675880), (2, 69337940), (4, 34668970), (5, 27735176), (7, 19810840), (8, 17334485), (10, 13867588), (14, 9905420), (20, 6933794), (28, 4952710), (35, 3962168), (40, 3466897), (49, 2830120), (56, 2476355), (70, 1981084), (98, 1415060), (140, 990542), (196, 707530), (245, 566024), (280, 495271), (392, 353765), (490, 283012), (980, 141506), (1960, 70753)]