990295566

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{421}}^1\times {\mathrm{569}}^1$

素因数の和:1061

約数の個数: 64

約数和(自身を含む): 2182178880

約数和(自身を除く): 1191883314

約数列:

[1, 2, 3, 6, 13, 26, 39, 53, 78, 106, 159, 318, 421, 569, 689, 842, 1138, 1263, 1378, 1707, 2067, 2526, 3414, 4134, 5473, 7397, 10946, 14794, 16419, 22191, 22313, 30157, 32838, 44382, 44626, 60314, 66939, 90471, 133878, 180942, 239549, 290069, 392041, 479098, 580138, 718647, 784082, 870207, 1176123, 1437294, 1740414, 2352246, 3114137, 6228274, 9342411, 12696097, 18684822, 25392194, 38088291, 76176582, 165049261, 330098522, 495147783, 990295566]

約数ペア:

[(1, 990295566), (2, 495147783), (3, 330098522), (6, 165049261), (13, 76176582), (26, 38088291), (39, 25392194), (53, 18684822), (78, 12696097), (106, 9342411), (159, 6228274), (318, 3114137), (421, 2352246), (569, 1740414), (689, 1437294), (842, 1176123), (1138, 870207), (1263, 784082), (1378, 718647), (1707, 580138), (2067, 479098), (2526, 392041), (3414, 290069), (4134, 239549), (5473, 180942), (7397, 133878), (10946, 90471), (14794, 66939), (16419, 60314), (22191, 44626), (22313, 44382), (30157, 32838)]