120008720

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1\times {\mathrm{449}}^1$

素因数の和:732

約数の個数: 80

約数和(自身を含む): 302324400

約数和(自身を除く): 182315680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 257, 260, 449, 514, 520, 898, 1028, 1040, 1285, 1796, 2056, 2245, 2570, 3341, 3592, 4112, 4490, 5140, 5837, 6682, 7184, 8980, 10280, 11674, 13364, 16705, 17960, 20560, 23348, 26728, 29185, 33410, 35920, 46696, 53456, 58370, 66820, 93392, 115393, 116740, 133640, 230786, 233480, 267280, 461572, 466960, 576965, 923144, 1153930, 1500109, 1846288, 2307860, 3000218, 4615720, 6000436, 7500545, 9231440, 12000872, 15001090, 24001744, 30002180, 60004360, 120008720]

約数ペア:

[(1, 120008720), (2, 60004360), (4, 30002180), (5, 24001744), (8, 15001090), (10, 12000872), (13, 9231440), (16, 7500545), (20, 6000436), (26, 4615720), (40, 3000218), (52, 2307860), (65, 1846288), (80, 1500109), (104, 1153930), (130, 923144), (208, 576965), (257, 466960), (260, 461572), (449, 267280), (514, 233480), (520, 230786), (898, 133640), (1028, 116740), (1040, 115393), (1285, 93392), (1796, 66820), (2056, 58370), (2245, 53456), (2570, 46696), (3341, 35920), (3592, 33410), (4112, 29185), (4490, 26728), (5140, 23348), (5837, 20560), (6682, 17960), (7184, 16705), (8980, 13364), (10280, 11674)]