320265520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{4483}}^1$

素因数の和:4562

約数の個数: 80

約数和(自身を含む): 800663040

約数和(自身を除く): 480397520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 47, 76, 80, 94, 95, 152, 188, 190, 235, 304, 376, 380, 470, 752, 760, 893, 940, 1520, 1786, 1880, 3572, 3760, 4465, 4483, 7144, 8930, 8966, 14288, 17860, 17932, 22415, 35720, 35864, 44830, 71440, 71728, 85177, 89660, 170354, 179320, 210701, 340708, 358640, 421402, 425885, 681416, 842804, 851770, 1053505, 1362832, 1685608, 1703540, 2107010, 3371216, 3407080, 4003319, 4214020, 6814160, 8006638, 8428040, 16013276, 16856080, 20016595, 32026552, 40033190, 64053104, 80066380, 160132760, 320265520]

約数ペア:

[(1, 320265520), (2, 160132760), (4, 80066380), (5, 64053104), (8, 40033190), (10, 32026552), (16, 20016595), (19, 16856080), (20, 16013276), (38, 8428040), (40, 8006638), (47, 6814160), (76, 4214020), (80, 4003319), (94, 3407080), (95, 3371216), (152, 2107010), (188, 1703540), (190, 1685608), (235, 1362832), (304, 1053505), (376, 851770), (380, 842804), (470, 681416), (752, 425885), (760, 421402), (893, 358640), (940, 340708), (1520, 210701), (1786, 179320), (1880, 170354), (3572, 89660), (3760, 85177), (4465, 71728), (4483, 71440), (7144, 44830), (8930, 35864), (8966, 35720), (14288, 22415), (17860, 17932)]