78716720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{233}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 190112832

約数和(自身を除く): 111396112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 103, 164, 205, 206, 233, 328, 410, 412, 466, 515, 656, 820, 824, 932, 1030, 1165, 1640, 1648, 1864, 2060, 2330, 3280, 3728, 4120, 4223, 4660, 8240, 8446, 9320, 9553, 16892, 18640, 19106, 21115, 23999, 33784, 38212, 42230, 47765, 47998, 67568, 76424, 84460, 95530, 95996, 119995, 152848, 168920, 191060, 191992, 239990, 337840, 382120, 383984, 479980, 764240, 959960, 983959, 1919920, 1967918, 3935836, 4919795, 7871672, 9839590, 15743344, 19679180, 39358360, 78716720]

約数ペア:

[(1, 78716720), (2, 39358360), (4, 19679180), (5, 15743344), (8, 9839590), (10, 7871672), (16, 4919795), (20, 3935836), (40, 1967918), (41, 1919920), (80, 983959), (82, 959960), (103, 764240), (164, 479980), (205, 383984), (206, 382120), (233, 337840), (328, 239990), (410, 191992), (412, 191060), (466, 168920), (515, 152848), (656, 119995), (820, 95996), (824, 95530), (932, 84460), (1030, 76424), (1165, 67568), (1640, 47998), (1648, 47765), (1864, 42230), (2060, 38212), (2330, 33784), (3280, 23999), (3728, 21115), (4120, 19106), (4223, 18640), (4660, 16892), (8240, 9553), (8446, 9320)]