457551220

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{1109}}^1$

素因数の和:1553

約数の個数: 72

約数和(自身を含む): 1121397480

約数和(自身を除く): 663846260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 421, 490, 842, 980, 1109, 1684, 2105, 2218, 2947, 4210, 4436, 5545, 5894, 7763, 8420, 11090, 11788, 14735, 15526, 20629, 22180, 29470, 31052, 38815, 41258, 54341, 58940, 77630, 82516, 103145, 108682, 155260, 206290, 217364, 271705, 412580, 466889, 543410, 933778, 1086820, 1867556, 2334445, 3268223, 4668890, 6536446, 9337780, 13072892, 16341115, 22877561, 32682230, 45755122, 65364460, 91510244, 114387805, 228775610, 457551220]

約数ペア:

[(1, 457551220), (2, 228775610), (4, 114387805), (5, 91510244), (7, 65364460), (10, 45755122), (14, 32682230), (20, 22877561), (28, 16341115), (35, 13072892), (49, 9337780), (70, 6536446), (98, 4668890), (140, 3268223), (196, 2334445), (245, 1867556), (421, 1086820), (490, 933778), (842, 543410), (980, 466889), (1109, 412580), (1684, 271705), (2105, 217364), (2218, 206290), (2947, 155260), (4210, 108682), (4436, 103145), (5545, 82516), (5894, 77630), (7763, 58940), (8420, 54341), (11090, 41258), (11788, 38815), (14735, 31052), (15526, 29470), (20629, 22180)]