258528080

素因数分解:

$2^4\times 5^1\times {\mathrm{311}}^1\times {\mathrm{10391}}^1$

素因数の和:10715

約数の個数: 40

約数和(自身を含む): 603068544

約数和(自身を除く): 344540464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 311, 622, 1244, 1555, 2488, 3110, 4976, 6220, 10391, 12440, 20782, 24880, 41564, 51955, 83128, 103910, 166256, 207820, 415640, 831280, 3231601, 6463202, 12926404, 16158005, 25852808, 32316010, 51705616, 64632020, 129264040, 258528080]

約数ペア:

[(1, 258528080), (2, 129264040), (4, 64632020), (5, 51705616), (8, 32316010), (10, 25852808), (16, 16158005), (20, 12926404), (40, 6463202), (80, 3231601), (311, 831280), (622, 415640), (1244, 207820), (1555, 166256), (2488, 103910), (3110, 83128), (4976, 51955), (6220, 41564), (10391, 24880), (12440, 20782)]