1280947290

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:756

約数の個数: 128

約数和(自身を含む): 3585669120

約数和(自身を除く): 2304721830

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 107, 109, 210, 214, 218, 321, 327, 523, 535, 545, 642, 654, 749, 763, 1046, 1070, 1090, 1498, 1526, 1569, 1605, 1635, 2247, 2289, 2615, 3138, 3210, 3270, 3661, 3745, 3815, 4494, 4578, 5230, 7322, 7490, 7630, 7845, 10983, 11235, 11445, 11663, 15690, 18305, 21966, 22470, 22890, 23326, 34989, 36610, 54915, 55961, 57007, 58315, 69978, 81641, 109830, 111922, 114014, 116630, 163282, 167883, 171021, 174945, 244923, 279805, 285035, 335766, 342042, 349890, 391727, 399049, 408205, 489846, 559610, 570070, 783454, 798098, 816410, 839415, 855105, 1175181, 1197147, 1224615, 1678830, 1710210, 1958635, 1995245, 2350362, 2394294, 2449230, 3917270, 3990490, 5875905, 5985735, 6099749, 11751810, 11971470, 12199498, 18299247, 30498745, 36598494, 42698243, 60997490, 85396486, 91496235, 128094729, 182992470, 213491215, 256189458, 426982430, 640473645, 1280947290]

約数ペア:

[(1, 1280947290), (2, 640473645), (3, 426982430), (5, 256189458), (6, 213491215), (7, 182992470), (10, 128094729), (14, 91496235), (15, 85396486), (21, 60997490), (30, 42698243), (35, 36598494), (42, 30498745), (70, 18299247), (105, 12199498), (107, 11971470), (109, 11751810), (210, 6099749), (214, 5985735), (218, 5875905), (321, 3990490), (327, 3917270), (523, 2449230), (535, 2394294), (545, 2350362), (642, 1995245), (654, 1958635), (749, 1710210), (763, 1678830), (1046, 1224615), (1070, 1197147), (1090, 1175181), (1498, 855105), (1526, 839415), (1569, 816410), (1605, 798098), (1635, 783454), (2247, 570070), (2289, 559610), (2615, 489846), (3138, 408205), (3210, 399049), (3270, 391727), (3661, 349890), (3745, 342042), (3815, 335766), (4494, 285035), (4578, 279805), (5230, 244923), (7322, 174945), (7490, 171021), (7630, 167883), (7845, 163282), (10983, 116630), (11235, 114014), (11445, 111922), (11663, 109830), (15690, 81641), (18305, 69978), (21966, 58315), (22470, 57007), (22890, 55961), (23326, 54915), (34989, 36610)]