205502560

素因数分解:

$2^5\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1949}}^1$

素因数の和:2623

約数の個数: 48

約数和(自身を含む): 486486000

約数和(自身を除く): 280983440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 659, 1318, 1949, 2636, 3295, 3898, 5272, 6590, 7796, 9745, 10544, 13180, 15592, 19490, 21088, 26360, 31184, 38980, 52720, 62368, 77960, 105440, 155920, 311840, 1284391, 2568782, 5137564, 6421955, 10275128, 12843910, 20550256, 25687820, 41100512, 51375640, 102751280, 205502560]

約数ペア:

[(1, 205502560), (2, 102751280), (4, 51375640), (5, 41100512), (8, 25687820), (10, 20550256), (16, 12843910), (20, 10275128), (32, 6421955), (40, 5137564), (80, 2568782), (160, 1284391), (659, 311840), (1318, 155920), (1949, 105440), (2636, 77960), (3295, 62368), (3898, 52720), (5272, 38980), (6590, 31184), (7796, 26360), (9745, 21088), (10544, 19490), (13180, 15592)]