82148680

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 189296640

約数和(自身を除く): 107147960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 127, 157, 206, 254, 314, 412, 508, 515, 628, 635, 785, 824, 1016, 1030, 1256, 1270, 1570, 2060, 2540, 3140, 4120, 5080, 6280, 13081, 16171, 19939, 26162, 32342, 39878, 52324, 64684, 65405, 79756, 80855, 99695, 104648, 129368, 130810, 159512, 161710, 199390, 261620, 323420, 398780, 523240, 646840, 797560, 2053717, 4107434, 8214868, 10268585, 16429736, 20537170, 41074340, 82148680]

約数ペア:

[(1, 82148680), (2, 41074340), (4, 20537170), (5, 16429736), (8, 10268585), (10, 8214868), (20, 4107434), (40, 2053717), (103, 797560), (127, 646840), (157, 523240), (206, 398780), (254, 323420), (314, 261620), (412, 199390), (508, 161710), (515, 159512), (628, 130810), (635, 129368), (785, 104648), (824, 99695), (1016, 80855), (1030, 79756), (1256, 65405), (1270, 64684), (1570, 52324), (2060, 39878), (2540, 32342), (3140, 26162), (4120, 19939), (5080, 16171), (6280, 13081)]