1390681520

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1\times {\mathrm{569}}^1$

素因数の和:942

約数の個数: 80

約数和(自身を含む): 3277290240

約数和(自身を除く): 1886608720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 223, 274, 446, 548, 569, 685, 892, 1096, 1115, 1138, 1370, 1784, 2192, 2230, 2276, 2740, 2845, 3568, 4460, 4552, 5480, 5690, 8920, 9104, 10960, 11380, 17840, 22760, 30551, 45520, 61102, 77953, 122204, 126887, 152755, 155906, 244408, 253774, 305510, 311812, 389765, 488816, 507548, 611020, 623624, 634435, 779530, 1015096, 1222040, 1247248, 1268870, 1559060, 2030192, 2444080, 2537740, 3118120, 5075480, 6236240, 10150960, 17383519, 34767038, 69534076, 86917595, 139068152, 173835190, 278136304, 347670380, 695340760, 1390681520]

約数ペア:

[(1, 1390681520), (2, 695340760), (4, 347670380), (5, 278136304), (8, 173835190), (10, 139068152), (16, 86917595), (20, 69534076), (40, 34767038), (80, 17383519), (137, 10150960), (223, 6236240), (274, 5075480), (446, 3118120), (548, 2537740), (569, 2444080), (685, 2030192), (892, 1559060), (1096, 1268870), (1115, 1247248), (1138, 1222040), (1370, 1015096), (1784, 779530), (2192, 634435), (2230, 623624), (2276, 611020), (2740, 507548), (2845, 488816), (3568, 389765), (4460, 311812), (4552, 305510), (5480, 253774), (5690, 244408), (8920, 155906), (9104, 152755), (10960, 126887), (11380, 122204), (17840, 77953), (22760, 61102), (30551, 45520)]