2791460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{157}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 6795264

約数和(自身を除く): 4003804

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 157, 254, 314, 508, 628, 635, 785, 889, 1099, 1270, 1570, 1778, 2198, 2540, 3140, 3556, 4396, 4445, 5495, 8890, 10990, 17780, 19939, 21980, 39878, 79756, 99695, 139573, 199390, 279146, 398780, 558292, 697865, 1395730, 2791460]

約数ペア:

[(1, 2791460), (2, 1395730), (4, 697865), (5, 558292), (7, 398780), (10, 279146), (14, 199390), (20, 139573), (28, 99695), (35, 79756), (70, 39878), (127, 21980), (140, 19939), (157, 17780), (254, 10990), (314, 8890), (508, 5495), (628, 4445), (635, 4396), (785, 3556), (889, 3140), (1099, 2540), (1270, 2198), (1570, 1778)]