1890559720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{25673}}^1$

素因数の和:25954

約数の個数: 64

約数和(自身を含む): 4880113920

約数和(自身を除く): 2989554200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 263, 280, 526, 1052, 1315, 1841, 2104, 2630, 3682, 5260, 7364, 9205, 10520, 14728, 18410, 25673, 36820, 51346, 73640, 102692, 128365, 179711, 205384, 256730, 359422, 513460, 718844, 898555, 1026920, 1437688, 1797110, 3594220, 6751999, 7188440, 13503998, 27007996, 33759995, 47263993, 54015992, 67519990, 94527986, 135039980, 189055972, 236319965, 270079960, 378111944, 472639930, 945279860, 1890559720]

約数ペア:

[(1, 1890559720), (2, 945279860), (4, 472639930), (5, 378111944), (7, 270079960), (8, 236319965), (10, 189055972), (14, 135039980), (20, 94527986), (28, 67519990), (35, 54015992), (40, 47263993), (56, 33759995), (70, 27007996), (140, 13503998), (263, 7188440), (280, 6751999), (526, 3594220), (1052, 1797110), (1315, 1437688), (1841, 1026920), (2104, 898555), (2630, 718844), (3682, 513460), (5260, 359422), (7364, 256730), (9205, 205384), (10520, 179711), (14728, 128365), (18410, 102692), (25673, 73640), (36820, 51346)]