18925060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{12289}}^1$

素因数の和:12316

約数の個数: 48

約数和(自身を含む): 49553280

約数和(自身を除く): 30628220

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 12289, 24578, 49156, 61445, 86023, 122890, 135179, 172046, 245780, 270358, 344092, 430115, 540716, 675895, 860230, 946253, 1351790, 1720460, 1892506, 2703580, 3785012, 4731265, 9462530, 18925060]

約数ペア:

[(1, 18925060), (2, 9462530), (4, 4731265), (5, 3785012), (7, 2703580), (10, 1892506), (11, 1720460), (14, 1351790), (20, 946253), (22, 860230), (28, 675895), (35, 540716), (44, 430115), (55, 344092), (70, 270358), (77, 245780), (110, 172046), (140, 135179), (154, 122890), (220, 86023), (308, 61445), (385, 49156), (770, 24578), (1540, 12289)]