39641980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{2129}}^1$

素因数の和:2171

約数の個数: 72

約数和(自身を含む): 101984400

約数和(自身を除く): 62342420

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 49, 70, 76, 95, 98, 133, 140, 190, 196, 245, 266, 380, 490, 532, 665, 931, 980, 1330, 1862, 2129, 2660, 3724, 4258, 4655, 8516, 9310, 10645, 14903, 18620, 21290, 29806, 40451, 42580, 59612, 74515, 80902, 104321, 149030, 161804, 202255, 208642, 283157, 298060, 404510, 417284, 521605, 566314, 809020, 1043210, 1132628, 1415785, 1982099, 2086420, 2831570, 3964198, 5663140, 7928396, 9910495, 19820990, 39641980]

約数ペア:

[(1, 39641980), (2, 19820990), (4, 9910495), (5, 7928396), (7, 5663140), (10, 3964198), (14, 2831570), (19, 2086420), (20, 1982099), (28, 1415785), (35, 1132628), (38, 1043210), (49, 809020), (70, 566314), (76, 521605), (95, 417284), (98, 404510), (133, 298060), (140, 283157), (190, 208642), (196, 202255), (245, 161804), (266, 149030), (380, 104321), (490, 80902), (532, 74515), (665, 59612), (931, 42580), (980, 40451), (1330, 29806), (1862, 21290), (2129, 18620), (2660, 14903), (3724, 10645), (4258, 9310), (4655, 8516)]