20745522028

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2172761}}^1$

素因数の和:2172814

約数の個数: 48

約数和(自身を含む): 46723074048

約数和(自身を除く): 25977552020

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 31, 44, 62, 77, 124, 154, 217, 308, 341, 434, 682, 868, 1364, 2387, 4774, 9548, 2172761, 4345522, 8691044, 15209327, 23900371, 30418654, 47800742, 60837308, 67355591, 95601484, 134711182, 167302597, 269422364, 334605194, 471489137, 669210388, 740911501, 942978274, 1481823002, 1885956548, 2963646004, 5186380507, 10372761014, 20745522028]

約数ペア:

[(1, 20745522028), (2, 10372761014), (4, 5186380507), (7, 2963646004), (11, 1885956548), (14, 1481823002), (22, 942978274), (28, 740911501), (31, 669210388), (44, 471489137), (62, 334605194), (77, 269422364), (124, 167302597), (154, 134711182), (217, 95601484), (308, 67355591), (341, 60837308), (434, 47800742), (682, 30418654), (868, 23900371), (1364, 15209327), (2387, 8691044), (4774, 4345522), (9548, 2172761)]