78728320

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:294

約数の個数: 128

約数和(自身を含む): 210185280

約数和(自身を除く): 131456960

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 53, 55, 64, 80, 88, 106, 110, 128, 160, 176, 211, 212, 220, 265, 320, 352, 422, 424, 440, 530, 583, 640, 704, 844, 848, 880, 1055, 1060, 1166, 1408, 1688, 1696, 1760, 2110, 2120, 2321, 2332, 2915, 3376, 3392, 3520, 4220, 4240, 4642, 4664, 5830, 6752, 6784, 7040, 8440, 8480, 9284, 9328, 11183, 11605, 11660, 13504, 16880, 16960, 18568, 18656, 22366, 23210, 23320, 27008, 33760, 33920, 37136, 37312, 44732, 46420, 46640, 55915, 67520, 74272, 74624, 89464, 92840, 93280, 111830, 123013, 135040, 148544, 178928, 185680, 186560, 223660, 246026, 297088, 357856, 371360, 373120, 447320, 492052, 615065, 715712, 742720, 894640, 984104, 1230130, 1431424, 1485440, 1789280, 1968208, 2460260, 3578560, 3936416, 4920520, 7157120, 7872832, 9841040, 15745664, 19682080, 39364160, 78728320]

約数ペア:

[(1, 78728320), (2, 39364160), (4, 19682080), (5, 15745664), (8, 9841040), (10, 7872832), (11, 7157120), (16, 4920520), (20, 3936416), (22, 3578560), (32, 2460260), (40, 1968208), (44, 1789280), (53, 1485440), (55, 1431424), (64, 1230130), (80, 984104), (88, 894640), (106, 742720), (110, 715712), (128, 615065), (160, 492052), (176, 447320), (211, 373120), (212, 371360), (220, 357856), (265, 297088), (320, 246026), (352, 223660), (422, 186560), (424, 185680), (440, 178928), (530, 148544), (583, 135040), (640, 123013), (704, 111830), (844, 93280), (848, 92840), (880, 89464), (1055, 74624), (1060, 74272), (1166, 67520), (1408, 55915), (1688, 46640), (1696, 46420), (1760, 44732), (2110, 37312), (2120, 37136), (2321, 33920), (2332, 33760), (2915, 27008), (3376, 23320), (3392, 23210), (3520, 22366), (4220, 18656), (4240, 18568), (4642, 16960), (4664, 16880), (5830, 13504), (6752, 11660), (6784, 11605), (7040, 11183), (8440, 9328), (8480, 9284)]