78821120

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{463}}^1$

素因数の和:510

約数の個数: 144

約数和(自身を含む): 227619840

約数和(自身を除く): 148798720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 256, 266, 280, 304, 320, 380, 448, 463, 532, 560, 608, 640, 665, 760, 896, 926, 1064, 1120, 1216, 1280, 1330, 1520, 1792, 1852, 2128, 2240, 2315, 2432, 2660, 3040, 3241, 3704, 4256, 4480, 4630, 4864, 5320, 6080, 6482, 7408, 8512, 8797, 8960, 9260, 10640, 12160, 12964, 14816, 16205, 17024, 17594, 18520, 21280, 24320, 25928, 29632, 32410, 34048, 35188, 37040, 42560, 43985, 51856, 59264, 61579, 64820, 70376, 74080, 85120, 87970, 103712, 118528, 123158, 129640, 140752, 148160, 170240, 175940, 207424, 246316, 259280, 281504, 296320, 307895, 351880, 414848, 492632, 518560, 563008, 592640, 615790, 703760, 829696, 985264, 1037120, 1126016, 1231580, 1407520, 1970528, 2074240, 2252032, 2463160, 2815040, 3941056, 4148480, 4926320, 5630080, 7882112, 9852640, 11260160, 15764224, 19705280, 39410560, 78821120]

約数ペア:

[(1, 78821120), (2, 39410560), (4, 19705280), (5, 15764224), (7, 11260160), (8, 9852640), (10, 7882112), (14, 5630080), (16, 4926320), (19, 4148480), (20, 3941056), (28, 2815040), (32, 2463160), (35, 2252032), (38, 2074240), (40, 1970528), (56, 1407520), (64, 1231580), (70, 1126016), (76, 1037120), (80, 985264), (95, 829696), (112, 703760), (128, 615790), (133, 592640), (140, 563008), (152, 518560), (160, 492632), (190, 414848), (224, 351880), (256, 307895), (266, 296320), (280, 281504), (304, 259280), (320, 246316), (380, 207424), (448, 175940), (463, 170240), (532, 148160), (560, 140752), (608, 129640), (640, 123158), (665, 118528), (760, 103712), (896, 87970), (926, 85120), (1064, 74080), (1120, 70376), (1216, 64820), (1280, 61579), (1330, 59264), (1520, 51856), (1792, 43985), (1852, 42560), (2128, 37040), (2240, 35188), (2315, 34048), (2432, 32410), (2660, 29632), (3040, 25928), (3241, 24320), (3704, 21280), (4256, 18520), (4480, 17594), (4630, 17024), (4864, 16205), (5320, 14816), (6080, 12964), (6482, 12160), (7408, 10640), (8512, 9260), (8797, 8960)]