260926960

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{257}}^1$

素因数の和:328

約数の個数: 160

約数和(自身を含む): 729417600

約数和(自身を除く): 468490640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 185, 196, 245, 257, 259, 280, 296, 343, 370, 392, 490, 514, 518, 560, 592, 686, 740, 784, 980, 1028, 1036, 1285, 1295, 1372, 1480, 1715, 1799, 1813, 1960, 2056, 2072, 2570, 2590, 2744, 2960, 3430, 3598, 3626, 3920, 4112, 4144, 5140, 5180, 5488, 6860, 7196, 7252, 8995, 9065, 9509, 10280, 10360, 12593, 12691, 13720, 14392, 14504, 17990, 18130, 19018, 20560, 20720, 25186, 25382, 27440, 28784, 29008, 35980, 36260, 38036, 47545, 50372, 50764, 62965, 63455, 66563, 71960, 72520, 76072, 88151, 95090, 100744, 101528, 125930, 126910, 133126, 143920, 145040, 152144, 176302, 190180, 201488, 203056, 251860, 253820, 266252, 332815, 352604, 380360, 440755, 465941, 503720, 507640, 532504, 665630, 705208, 760720, 881510, 931882, 1007440, 1015280, 1065008, 1331260, 1410416, 1763020, 1863764, 2329705, 2662520, 3261587, 3526040, 3727528, 4659410, 5325040, 6523174, 7052080, 7455056, 9318820, 13046348, 16307935, 18637640, 26092696, 32615870, 37275280, 52185392, 65231740, 130463480, 260926960]

約数ペア:

[(1, 260926960), (2, 130463480), (4, 65231740), (5, 52185392), (7, 37275280), (8, 32615870), (10, 26092696), (14, 18637640), (16, 16307935), (20, 13046348), (28, 9318820), (35, 7455056), (37, 7052080), (40, 6523174), (49, 5325040), (56, 4659410), (70, 3727528), (74, 3526040), (80, 3261587), (98, 2662520), (112, 2329705), (140, 1863764), (148, 1763020), (185, 1410416), (196, 1331260), (245, 1065008), (257, 1015280), (259, 1007440), (280, 931882), (296, 881510), (343, 760720), (370, 705208), (392, 665630), (490, 532504), (514, 507640), (518, 503720), (560, 465941), (592, 440755), (686, 380360), (740, 352604), (784, 332815), (980, 266252), (1028, 253820), (1036, 251860), (1285, 203056), (1295, 201488), (1372, 190180), (1480, 176302), (1715, 152144), (1799, 145040), (1813, 143920), (1960, 133126), (2056, 126910), (2072, 125930), (2570, 101528), (2590, 100744), (2744, 95090), (2960, 88151), (3430, 76072), (3598, 72520), (3626, 71960), (3920, 66563), (4112, 63455), (4144, 62965), (5140, 50764), (5180, 50372), (5488, 47545), (6860, 38036), (7196, 36260), (7252, 35980), (8995, 29008), (9065, 28784), (9509, 27440), (10280, 25382), (10360, 25186), (12593, 20720), (12691, 20560), (13720, 19018), (14392, 18130), (14504, 17990)]