72961720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{727}}^1$

素因数の和:944

約数の個数: 64

約数和(自身を含む): 177952320

約数和(自身を除く): 104990600

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 193, 260, 386, 520, 727, 772, 965, 1454, 1544, 1930, 2509, 2908, 3635, 3860, 5018, 5816, 7270, 7720, 9451, 10036, 12545, 14540, 18902, 20072, 25090, 29080, 37804, 47255, 50180, 75608, 94510, 100360, 140311, 189020, 280622, 378040, 561244, 701555, 1122488, 1403110, 1824043, 2806220, 3648086, 5612440, 7296172, 9120215, 14592344, 18240430, 36480860, 72961720]

約数ペア:

[(1, 72961720), (2, 36480860), (4, 18240430), (5, 14592344), (8, 9120215), (10, 7296172), (13, 5612440), (20, 3648086), (26, 2806220), (40, 1824043), (52, 1403110), (65, 1122488), (104, 701555), (130, 561244), (193, 378040), (260, 280622), (386, 189020), (520, 140311), (727, 100360), (772, 94510), (965, 75608), (1454, 50180), (1544, 47255), (1930, 37804), (2509, 29080), (2908, 25090), (3635, 20072), (3860, 18902), (5018, 14540), (5816, 12545), (7270, 10036), (7720, 9451)]