78406920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{3821}}^1$

素因数の和:3860

約数の個数: 128

約数和(自身を含む): 275184000

約数和(自身を除く): 196777080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 27, 30, 36, 38, 40, 45, 54, 57, 60, 72, 76, 90, 95, 108, 114, 120, 135, 152, 171, 180, 190, 216, 228, 270, 285, 342, 360, 380, 456, 513, 540, 570, 684, 760, 855, 1026, 1080, 1140, 1368, 1710, 2052, 2280, 2565, 3420, 3821, 4104, 5130, 6840, 7642, 10260, 11463, 15284, 19105, 20520, 22926, 30568, 34389, 38210, 45852, 57315, 68778, 72599, 76420, 91704, 103167, 114630, 137556, 145198, 152840, 171945, 206334, 217797, 229260, 275112, 290396, 343890, 362995, 412668, 435594, 458520, 515835, 580792, 653391, 687780, 725990, 825336, 871188, 1031670, 1088985, 1306782, 1375560, 1451980, 1742376, 1960173, 2063340, 2177970, 2613564, 2903960, 3266955, 3920346, 4126680, 4355940, 5227128, 6533910, 7840692, 8711880, 9800865, 13067820, 15681384, 19601730, 26135640, 39203460, 78406920]

約数ペア:

[(1, 78406920), (2, 39203460), (3, 26135640), (4, 19601730), (5, 15681384), (6, 13067820), (8, 9800865), (9, 8711880), (10, 7840692), (12, 6533910), (15, 5227128), (18, 4355940), (19, 4126680), (20, 3920346), (24, 3266955), (27, 2903960), (30, 2613564), (36, 2177970), (38, 2063340), (40, 1960173), (45, 1742376), (54, 1451980), (57, 1375560), (60, 1306782), (72, 1088985), (76, 1031670), (90, 871188), (95, 825336), (108, 725990), (114, 687780), (120, 653391), (135, 580792), (152, 515835), (171, 458520), (180, 435594), (190, 412668), (216, 362995), (228, 343890), (270, 290396), (285, 275112), (342, 229260), (360, 217797), (380, 206334), (456, 171945), (513, 152840), (540, 145198), (570, 137556), (684, 114630), (760, 103167), (855, 91704), (1026, 76420), (1080, 72599), (1140, 68778), (1368, 57315), (1710, 45852), (2052, 38210), (2280, 34389), (2565, 30568), (3420, 22926), (3821, 20520), (4104, 19105), (5130, 15284), (6840, 11463), (7642, 10260)]