2021521460

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{337}}^1\times {\mathrm{6121}}^1$

素因数の和:6481

約数の個数: 72

約数和(自身を含む): 4953750984

約数和(自身を除く): 2932229524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 337, 490, 674, 980, 1348, 1685, 2359, 3370, 4718, 6121, 6740, 9436, 11795, 12242, 16513, 23590, 24484, 30605, 33026, 42847, 47180, 61210, 66052, 82565, 85694, 122420, 165130, 171388, 214235, 299929, 330260, 428470, 599858, 856940, 1199716, 1499645, 2062777, 2999290, 4125554, 5998580, 8251108, 10313885, 14439439, 20627770, 28878878, 41255540, 57757756, 72197195, 101076073, 144394390, 202152146, 288788780, 404304292, 505380365, 1010760730, 2021521460]

約数ペア:

[(1, 2021521460), (2, 1010760730), (4, 505380365), (5, 404304292), (7, 288788780), (10, 202152146), (14, 144394390), (20, 101076073), (28, 72197195), (35, 57757756), (49, 41255540), (70, 28878878), (98, 20627770), (140, 14439439), (196, 10313885), (245, 8251108), (337, 5998580), (490, 4125554), (674, 2999290), (980, 2062777), (1348, 1499645), (1685, 1199716), (2359, 856940), (3370, 599858), (4718, 428470), (6121, 330260), (6740, 299929), (9436, 214235), (11795, 171388), (12242, 165130), (16513, 122420), (23590, 85694), (24484, 82565), (30605, 66052), (33026, 61210), (42847, 47180)]