128936080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:321

約数の個数: 160

約数和(自身を含む): 374976000

約数和(自身を除く): 246039920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 52, 56, 65, 70, 80, 89, 91, 104, 112, 130, 140, 178, 182, 199, 208, 260, 280, 356, 364, 398, 445, 455, 520, 560, 623, 712, 728, 796, 890, 910, 995, 1040, 1157, 1246, 1393, 1424, 1456, 1592, 1780, 1820, 1990, 2314, 2492, 2587, 2786, 3115, 3184, 3560, 3640, 3980, 4628, 4984, 5174, 5572, 5785, 6230, 6965, 7120, 7280, 7960, 8099, 9256, 9968, 10348, 11144, 11570, 12460, 12935, 13930, 15920, 16198, 17711, 18109, 18512, 20696, 22288, 23140, 24920, 25870, 27860, 32396, 35422, 36218, 40495, 41392, 46280, 49840, 51740, 55720, 64792, 70844, 72436, 80990, 88555, 90545, 92560, 103480, 111440, 123977, 129584, 141688, 144872, 161980, 177110, 181090, 206960, 230243, 247954, 283376, 289744, 323960, 354220, 362180, 460486, 495908, 619885, 647920, 708440, 724360, 920972, 991816, 1151215, 1239770, 1416880, 1448720, 1611701, 1841944, 1983632, 2302430, 2479540, 3223402, 3683888, 4604860, 4959080, 6446804, 8058505, 9209720, 9918160, 12893608, 16117010, 18419440, 25787216, 32234020, 64468040, 128936080]

約数ペア:

[(1, 128936080), (2, 64468040), (4, 32234020), (5, 25787216), (7, 18419440), (8, 16117010), (10, 12893608), (13, 9918160), (14, 9209720), (16, 8058505), (20, 6446804), (26, 4959080), (28, 4604860), (35, 3683888), (40, 3223402), (52, 2479540), (56, 2302430), (65, 1983632), (70, 1841944), (80, 1611701), (89, 1448720), (91, 1416880), (104, 1239770), (112, 1151215), (130, 991816), (140, 920972), (178, 724360), (182, 708440), (199, 647920), (208, 619885), (260, 495908), (280, 460486), (356, 362180), (364, 354220), (398, 323960), (445, 289744), (455, 283376), (520, 247954), (560, 230243), (623, 206960), (712, 181090), (728, 177110), (796, 161980), (890, 144872), (910, 141688), (995, 129584), (1040, 123977), (1157, 111440), (1246, 103480), (1393, 92560), (1424, 90545), (1456, 88555), (1592, 80990), (1780, 72436), (1820, 70844), (1990, 64792), (2314, 55720), (2492, 51740), (2587, 49840), (2786, 46280), (3115, 41392), (3184, 40495), (3560, 36218), (3640, 35422), (3980, 32396), (4628, 27860), (4984, 25870), (5174, 24920), (5572, 23140), (5785, 22288), (6230, 20696), (6965, 18512), (7120, 18109), (7280, 17711), (7960, 16198), (8099, 15920), (9256, 13930), (9968, 12935), (10348, 12460), (11144, 11570)]