77841680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{229}}^1\times {\mathrm{607}}^1$

素因数の和:856

約数の個数: 80

約数和(自身を含む): 208081920

約数和(自身を除く): 130240240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 229, 280, 458, 560, 607, 916, 1145, 1214, 1603, 1832, 2290, 2428, 3035, 3206, 3664, 4249, 4580, 4856, 6070, 6412, 8015, 8498, 9160, 9712, 12140, 12824, 16030, 16996, 18320, 21245, 24280, 25648, 32060, 33992, 42490, 48560, 64120, 67984, 84980, 128240, 139003, 169960, 278006, 339920, 556012, 695015, 973021, 1112024, 1390030, 1946042, 2224048, 2780060, 3892084, 4865105, 5560120, 7784168, 9730210, 11120240, 15568336, 19460420, 38920840, 77841680]

約数ペア:

[(1, 77841680), (2, 38920840), (4, 19460420), (5, 15568336), (7, 11120240), (8, 9730210), (10, 7784168), (14, 5560120), (16, 4865105), (20, 3892084), (28, 2780060), (35, 2224048), (40, 1946042), (56, 1390030), (70, 1112024), (80, 973021), (112, 695015), (140, 556012), (229, 339920), (280, 278006), (458, 169960), (560, 139003), (607, 128240), (916, 84980), (1145, 67984), (1214, 64120), (1603, 48560), (1832, 42490), (2290, 33992), (2428, 32060), (3035, 25648), (3206, 24280), (3664, 21245), (4249, 18320), (4580, 16996), (4856, 16030), (6070, 12824), (6412, 12140), (8015, 9712), (8498, 9160)]