28218800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:163

約数の個数: 120

約数和(自身を含む): 73804800

約数和(自身を除く): 45586000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 47, 50, 76, 79, 80, 94, 95, 100, 152, 158, 188, 190, 200, 235, 304, 316, 376, 380, 395, 400, 470, 475, 632, 752, 760, 790, 893, 940, 950, 1175, 1264, 1501, 1520, 1580, 1786, 1880, 1900, 1975, 2350, 3002, 3160, 3572, 3713, 3760, 3800, 3950, 4465, 4700, 6004, 6320, 7144, 7426, 7505, 7600, 7900, 8930, 9400, 12008, 14288, 14852, 15010, 15800, 17860, 18565, 18800, 22325, 24016, 29704, 30020, 31600, 35720, 37130, 37525, 44650, 59408, 60040, 70547, 71440, 74260, 75050, 89300, 92825, 120080, 141094, 148520, 150100, 178600, 185650, 282188, 297040, 300200, 352735, 357200, 371300, 564376, 600400, 705470, 742600, 1128752, 1410940, 1485200, 1763675, 2821880, 3527350, 5643760, 7054700, 14109400, 28218800]

約数ペア:

[(1, 28218800), (2, 14109400), (4, 7054700), (5, 5643760), (8, 3527350), (10, 2821880), (16, 1763675), (19, 1485200), (20, 1410940), (25, 1128752), (38, 742600), (40, 705470), (47, 600400), (50, 564376), (76, 371300), (79, 357200), (80, 352735), (94, 300200), (95, 297040), (100, 282188), (152, 185650), (158, 178600), (188, 150100), (190, 148520), (200, 141094), (235, 120080), (304, 92825), (316, 89300), (376, 75050), (380, 74260), (395, 71440), (400, 70547), (470, 60040), (475, 59408), (632, 44650), (752, 37525), (760, 37130), (790, 35720), (893, 31600), (940, 30020), (950, 29704), (1175, 24016), (1264, 22325), (1501, 18800), (1520, 18565), (1580, 17860), (1786, 15800), (1880, 15010), (1900, 14852), (1975, 14288), (2350, 12008), (3002, 9400), (3160, 8930), (3572, 7900), (3713, 7600), (3760, 7505), (3800, 7426), (3950, 7144), (4465, 6320), (4700, 6004)]