15761720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1783}}^1$

素因数の和:1824

約数の個数: 64

約数和(自身を含む): 40461120

約数和(自身を除く): 24699400

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 1783, 2210, 3566, 4420, 7132, 8840, 8915, 14264, 17830, 23179, 30311, 35660, 46358, 60622, 71320, 92716, 115895, 121244, 151555, 185432, 231790, 242488, 303110, 394043, 463580, 606220, 788086, 927160, 1212440, 1576172, 1970215, 3152344, 3940430, 7880860, 15761720]

約数ペア:

[(1, 15761720), (2, 7880860), (4, 3940430), (5, 3152344), (8, 1970215), (10, 1576172), (13, 1212440), (17, 927160), (20, 788086), (26, 606220), (34, 463580), (40, 394043), (52, 303110), (65, 242488), (68, 231790), (85, 185432), (104, 151555), (130, 121244), (136, 115895), (170, 92716), (221, 71320), (260, 60622), (340, 46358), (442, 35660), (520, 30311), (680, 23179), (884, 17830), (1105, 14264), (1768, 8915), (1783, 8840), (2210, 7132), (3566, 4420)]