660257920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{293}}^1\times {\mathrm{503}}^1$

素因数の和:822

約数の個数: 128

約数和(自身を含む): 1813674240

約数和(自身を除く): 1153416320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 280, 293, 320, 448, 503, 560, 586, 640, 896, 1006, 1120, 1172, 1465, 2012, 2051, 2240, 2344, 2515, 2930, 3521, 4024, 4102, 4480, 4688, 5030, 5860, 7042, 8048, 8204, 9376, 10060, 10255, 11720, 14084, 16096, 16408, 17605, 18752, 20120, 20510, 23440, 28168, 32192, 32816, 35210, 37504, 40240, 41020, 46880, 56336, 64384, 65632, 70420, 80480, 82040, 93760, 112672, 131264, 140840, 147379, 160960, 164080, 187520, 225344, 262528, 281680, 294758, 321920, 328160, 450688, 563360, 589516, 656320, 736895, 1031653, 1126720, 1179032, 1312640, 1473790, 2063306, 2253440, 2358064, 2947580, 4126612, 4716128, 5158265, 5895160, 8253224, 9432256, 10316530, 11790320, 16506448, 18864512, 20633060, 23580640, 33012896, 41266120, 47161280, 66025792, 82532240, 94322560, 132051584, 165064480, 330128960, 660257920]

約数ペア:

[(1, 660257920), (2, 330128960), (4, 165064480), (5, 132051584), (7, 94322560), (8, 82532240), (10, 66025792), (14, 47161280), (16, 41266120), (20, 33012896), (28, 23580640), (32, 20633060), (35, 18864512), (40, 16506448), (56, 11790320), (64, 10316530), (70, 9432256), (80, 8253224), (112, 5895160), (128, 5158265), (140, 4716128), (160, 4126612), (224, 2947580), (280, 2358064), (293, 2253440), (320, 2063306), (448, 1473790), (503, 1312640), (560, 1179032), (586, 1126720), (640, 1031653), (896, 736895), (1006, 656320), (1120, 589516), (1172, 563360), (1465, 450688), (2012, 328160), (2051, 321920), (2240, 294758), (2344, 281680), (2515, 262528), (2930, 225344), (3521, 187520), (4024, 164080), (4102, 160960), (4480, 147379), (4688, 140840), (5030, 131264), (5860, 112672), (7042, 93760), (8048, 82040), (8204, 80480), (9376, 70420), (10060, 65632), (10255, 64384), (11720, 56336), (14084, 46880), (16096, 41020), (16408, 40240), (17605, 37504), (18752, 35210), (20120, 32816), (20510, 32192), (23440, 28168)]