21181452400

素因数分解:

$2^4\times 5^2\times {\mathrm{47}}^1\times {\mathrm{719}}^1\times {\mathrm{1567}}^1$

素因数の和:2351

約数の個数: 120

約数和(自身を含む): 52076666880

約数和(自身を除く): 30895214480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 47, 50, 80, 94, 100, 188, 200, 235, 376, 400, 470, 719, 752, 940, 1175, 1438, 1567, 1880, 2350, 2876, 3134, 3595, 3760, 4700, 5752, 6268, 7190, 7835, 9400, 11504, 12536, 14380, 15670, 17975, 18800, 25072, 28760, 31340, 33793, 35950, 39175, 57520, 62680, 67586, 71900, 73649, 78350, 125360, 135172, 143800, 147298, 156700, 168965, 270344, 287600, 294596, 313400, 337930, 368245, 540688, 589192, 626800, 675860, 736490, 844825, 1126673, 1178384, 1351720, 1472980, 1689650, 1841225, 2253346, 2703440, 2945960, 3379300, 3682450, 4506692, 5633365, 5891920, 6758600, 7364900, 9013384, 11266730, 13517200, 14729800, 18026768, 22533460, 28166825, 29459600, 45066920, 52953631, 56333650, 90133840, 105907262, 112667300, 211814524, 225334600, 264768155, 423629048, 450669200, 529536310, 847258096, 1059072620, 1323840775, 2118145240, 2647681550, 4236290480, 5295363100, 10590726200, 21181452400]

約数ペア:

[(1, 21181452400), (2, 10590726200), (4, 5295363100), (5, 4236290480), (8, 2647681550), (10, 2118145240), (16, 1323840775), (20, 1059072620), (25, 847258096), (40, 529536310), (47, 450669200), (50, 423629048), (80, 264768155), (94, 225334600), (100, 211814524), (188, 112667300), (200, 105907262), (235, 90133840), (376, 56333650), (400, 52953631), (470, 45066920), (719, 29459600), (752, 28166825), (940, 22533460), (1175, 18026768), (1438, 14729800), (1567, 13517200), (1880, 11266730), (2350, 9013384), (2876, 7364900), (3134, 6758600), (3595, 5891920), (3760, 5633365), (4700, 4506692), (5752, 3682450), (6268, 3379300), (7190, 2945960), (7835, 2703440), (9400, 2253346), (11504, 1841225), (12536, 1689650), (14380, 1472980), (15670, 1351720), (17975, 1178384), (18800, 1126673), (25072, 844825), (28760, 736490), (31340, 675860), (33793, 626800), (35950, 589192), (39175, 540688), (57520, 368245), (62680, 337930), (67586, 313400), (71900, 294596), (73649, 287600), (78350, 270344), (125360, 168965), (135172, 156700), (143800, 147298)]