69977320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{509}}^1$

素因数の和:1018

約数の個数: 64

約数和(自身を含む): 180662400

約数和(自身を除く): 110685080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 491, 509, 982, 1018, 1964, 2036, 2455, 2545, 3437, 3563, 3928, 4072, 4910, 5090, 6874, 7126, 9820, 10180, 13748, 14252, 17185, 17815, 19640, 20360, 27496, 28504, 34370, 35630, 68740, 71260, 137480, 142520, 249919, 499838, 999676, 1249595, 1749433, 1999352, 2499190, 3498866, 4998380, 6997732, 8747165, 9996760, 13995464, 17494330, 34988660, 69977320]

約数ペア:

[(1, 69977320), (2, 34988660), (4, 17494330), (5, 13995464), (7, 9996760), (8, 8747165), (10, 6997732), (14, 4998380), (20, 3498866), (28, 2499190), (35, 1999352), (40, 1749433), (56, 1249595), (70, 999676), (140, 499838), (280, 249919), (491, 142520), (509, 137480), (982, 71260), (1018, 68740), (1964, 35630), (2036, 34370), (2455, 28504), (2545, 27496), (3437, 20360), (3563, 19640), (3928, 17815), (4072, 17185), (4910, 14252), (5090, 13748), (6874, 10180), (7126, 9820)]