19802816

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1223}}^1$

素因数の和:1269

約数の個数: 56

約数和(自身を含む): 44769024

約数和(自身を除く): 24966208

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 32, 44, 46, 64, 88, 92, 176, 184, 253, 352, 368, 506, 704, 736, 1012, 1223, 1472, 2024, 2446, 4048, 4892, 8096, 9784, 13453, 16192, 19568, 26906, 28129, 39136, 53812, 56258, 78272, 107624, 112516, 215248, 225032, 309419, 430496, 450064, 618838, 860992, 900128, 1237676, 1800256, 2475352, 4950704, 9901408, 19802816]

約数ペア:

[(1, 19802816), (2, 9901408), (4, 4950704), (8, 2475352), (11, 1800256), (16, 1237676), (22, 900128), (23, 860992), (32, 618838), (44, 450064), (46, 430496), (64, 309419), (88, 225032), (92, 215248), (176, 112516), (184, 107624), (253, 78272), (352, 56258), (368, 53812), (506, 39136), (704, 28129), (736, 26906), (1012, 19568), (1223, 16192), (1472, 13453), (2024, 9784), (2446, 8096), (4048, 4892)]