20337568

素因数分解:

$2^5\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{193}}^1$

素因数の和:329

約数の個数: 48

約数和(自身を含む): 41799240

約数和(自身を除く): 21461672

約数列:

[1, 2, 4, 8, 16, 32, 37, 74, 89, 148, 178, 193, 296, 356, 386, 592, 712, 772, 1184, 1424, 1544, 2848, 3088, 3293, 6176, 6586, 7141, 13172, 14282, 17177, 26344, 28564, 34354, 52688, 57128, 68708, 105376, 114256, 137416, 228512, 274832, 549664, 635549, 1271098, 2542196, 5084392, 10168784, 20337568]

約数ペア:

[(1, 20337568), (2, 10168784), (4, 5084392), (8, 2542196), (16, 1271098), (32, 635549), (37, 549664), (74, 274832), (89, 228512), (148, 137416), (178, 114256), (193, 105376), (296, 68708), (356, 57128), (386, 52688), (592, 34354), (712, 28564), (772, 26344), (1184, 17177), (1424, 14282), (1544, 13172), (2848, 7141), (3088, 6586), (3293, 6176)]