38401720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 128

約数和(自身を含む): 105753600

約数和(自身を除く): 67351880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 67, 70, 89, 92, 115, 134, 140, 161, 178, 184, 230, 268, 280, 322, 335, 356, 445, 460, 469, 536, 623, 644, 670, 712, 805, 890, 920, 938, 1246, 1288, 1340, 1541, 1610, 1780, 1876, 2047, 2345, 2492, 2680, 3082, 3115, 3220, 3560, 3752, 4094, 4690, 4984, 5963, 6164, 6230, 6440, 7705, 8188, 9380, 10235, 10787, 11926, 12328, 12460, 14329, 15410, 16376, 18760, 20470, 21574, 23852, 24920, 28658, 29815, 30820, 40940, 41741, 43148, 47704, 53935, 57316, 59630, 61640, 71645, 81880, 83482, 86296, 107870, 114632, 119260, 137149, 143290, 166964, 208705, 215740, 238520, 274298, 286580, 333928, 417410, 431480, 548596, 573160, 685745, 834820, 960043, 1097192, 1371490, 1669640, 1920086, 2742980, 3840172, 4800215, 5485960, 7680344, 9600430, 19200860, 38401720]

約数ペア:

[(1, 38401720), (2, 19200860), (4, 9600430), (5, 7680344), (7, 5485960), (8, 4800215), (10, 3840172), (14, 2742980), (20, 1920086), (23, 1669640), (28, 1371490), (35, 1097192), (40, 960043), (46, 834820), (56, 685745), (67, 573160), (70, 548596), (89, 431480), (92, 417410), (115, 333928), (134, 286580), (140, 274298), (161, 238520), (178, 215740), (184, 208705), (230, 166964), (268, 143290), (280, 137149), (322, 119260), (335, 114632), (356, 107870), (445, 86296), (460, 83482), (469, 81880), (536, 71645), (623, 61640), (644, 59630), (670, 57316), (712, 53935), (805, 47704), (890, 43148), (920, 41741), (938, 40940), (1246, 30820), (1288, 29815), (1340, 28658), (1541, 24920), (1610, 23852), (1780, 21574), (1876, 20470), (2047, 18760), (2345, 16376), (2492, 15410), (2680, 14329), (3082, 12460), (3115, 12328), (3220, 11926), (3560, 10787), (3752, 10235), (4094, 9380), (4690, 8188), (4984, 7705), (5963, 6440), (6164, 6230)]