638761904

素因数分解:

$2^4\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{7673}}^1$

素因数の和:7746

約数の個数: 60

約数和(自身を含む): 1392155688

約数和(自身を除く): 753393784

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 121, 172, 176, 242, 344, 473, 484, 688, 946, 968, 1892, 1936, 3784, 5203, 7568, 7673, 10406, 15346, 20812, 30692, 41624, 61384, 83248, 84403, 122768, 168806, 329939, 337612, 659878, 675224, 928433, 1319756, 1350448, 1856866, 2639512, 3629329, 3713732, 5279024, 7258658, 7427464, 14517316, 14854928, 29034632, 39922619, 58069264, 79845238, 159690476, 319380952, 638761904]

約数ペア:

[(1, 638761904), (2, 319380952), (4, 159690476), (8, 79845238), (11, 58069264), (16, 39922619), (22, 29034632), (43, 14854928), (44, 14517316), (86, 7427464), (88, 7258658), (121, 5279024), (172, 3713732), (176, 3629329), (242, 2639512), (344, 1856866), (473, 1350448), (484, 1319756), (688, 928433), (946, 675224), (968, 659878), (1892, 337612), (1936, 329939), (3784, 168806), (5203, 122768), (7568, 84403), (7673, 83248), (10406, 61384), (15346, 41624), (20812, 30692)]