140212520

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71537}}^1$

素因数の和:71562

約数の個数: 48

約数和(自身を含む): 366989940

約数和(自身を除く): 226777420

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, 71537, 143074, 286148, 357685, 500759, 572296, 715370, 1001518, 1430740, 2003036, 2503795, 2861480, 3505313, 4006072, 5007590, 7010626, 10015180, 14021252, 17526565, 20030360, 28042504, 35053130, 70106260, 140212520]

約数ペア:

[(1, 140212520), (2, 70106260), (4, 35053130), (5, 28042504), (7, 20030360), (8, 17526565), (10, 14021252), (14, 10015180), (20, 7010626), (28, 5007590), (35, 4006072), (40, 3505313), (49, 2861480), (56, 2503795), (70, 2003036), (98, 1430740), (140, 1001518), (196, 715370), (245, 572296), (280, 500759), (392, 357685), (490, 286148), (980, 143074), (1960, 71537)]