131321640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{7873}}^1$

素因数の和:8026

約数の個数: 64

約数和(自身を含む): 396849600

約数和(自身を除く): 265527960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 139, 278, 417, 556, 695, 834, 1112, 1390, 1668, 2085, 2780, 3336, 4170, 5560, 7873, 8340, 15746, 16680, 23619, 31492, 39365, 47238, 62984, 78730, 94476, 118095, 157460, 188952, 236190, 314920, 472380, 944760, 1094347, 2188694, 3283041, 4377388, 5471735, 6566082, 8754776, 10943470, 13132164, 16415205, 21886940, 26264328, 32830410, 43773880, 65660820, 131321640]

約数ペア:

[(1, 131321640), (2, 65660820), (3, 43773880), (4, 32830410), (5, 26264328), (6, 21886940), (8, 16415205), (10, 13132164), (12, 10943470), (15, 8754776), (20, 6566082), (24, 5471735), (30, 4377388), (40, 3283041), (60, 2188694), (120, 1094347), (139, 944760), (278, 472380), (417, 314920), (556, 236190), (695, 188952), (834, 157460), (1112, 118095), (1390, 94476), (1668, 78730), (2085, 62984), (2780, 47238), (3336, 39365), (4170, 31492), (5560, 23619), (7873, 16680), (8340, 15746)]