20661200

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1$

素因数の和:229

約数の個数: 120

約数和(自身を含む): 58305792

約数和(自身を除く): 37644592

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 47, 50, 56, 70, 80, 94, 100, 112, 140, 157, 175, 188, 200, 235, 280, 314, 329, 350, 376, 400, 470, 560, 628, 658, 700, 752, 785, 940, 1099, 1175, 1256, 1316, 1400, 1570, 1645, 1880, 2198, 2350, 2512, 2632, 2800, 3140, 3290, 3760, 3925, 4396, 4700, 5264, 5495, 6280, 6580, 7379, 7850, 8225, 8792, 9400, 10990, 12560, 13160, 14758, 15700, 16450, 17584, 18800, 21980, 26320, 27475, 29516, 31400, 32900, 36895, 43960, 51653, 54950, 59032, 62800, 65800, 73790, 87920, 103306, 109900, 118064, 131600, 147580, 184475, 206612, 219800, 258265, 295160, 368950, 413224, 439600, 516530, 590320, 737900, 826448, 1033060, 1291325, 1475800, 2066120, 2582650, 2951600, 4132240, 5165300, 10330600, 20661200]

約数ペア:

[(1, 20661200), (2, 10330600), (4, 5165300), (5, 4132240), (7, 2951600), (8, 2582650), (10, 2066120), (14, 1475800), (16, 1291325), (20, 1033060), (25, 826448), (28, 737900), (35, 590320), (40, 516530), (47, 439600), (50, 413224), (56, 368950), (70, 295160), (80, 258265), (94, 219800), (100, 206612), (112, 184475), (140, 147580), (157, 131600), (175, 118064), (188, 109900), (200, 103306), (235, 87920), (280, 73790), (314, 65800), (329, 62800), (350, 59032), (376, 54950), (400, 51653), (470, 43960), (560, 36895), (628, 32900), (658, 31400), (700, 29516), (752, 27475), (785, 26320), (940, 21980), (1099, 18800), (1175, 17584), (1256, 16450), (1316, 15700), (1400, 14758), (1570, 13160), (1645, 12560), (1880, 10990), (2198, 9400), (2350, 8792), (2512, 8225), (2632, 7850), (2800, 7379), (3140, 6580), (3290, 6280), (3760, 5495), (3925, 5264), (4396, 4700)]