261236280

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{3461}}^1$

素因数の和:3529

約数の個数: 128

約数和(自身を含む): 852482880

約数和(自身を除く): 591246600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 37, 40, 51, 60, 68, 74, 85, 102, 111, 120, 136, 148, 170, 185, 204, 222, 255, 296, 340, 370, 408, 444, 510, 555, 629, 680, 740, 888, 1020, 1110, 1258, 1480, 1887, 2040, 2220, 2516, 3145, 3461, 3774, 4440, 5032, 6290, 6922, 7548, 9435, 10383, 12580, 13844, 15096, 17305, 18870, 20766, 25160, 27688, 34610, 37740, 41532, 51915, 58837, 69220, 75480, 83064, 103830, 117674, 128057, 138440, 176511, 207660, 235348, 256114, 294185, 353022, 384171, 415320, 470696, 512228, 588370, 640285, 706044, 768342, 882555, 1024456, 1176740, 1280570, 1412088, 1536684, 1765110, 1920855, 2176969, 2353480, 2561140, 3073368, 3530220, 3841710, 4353938, 5122280, 6530907, 7060440, 7683420, 8707876, 10884845, 13061814, 15366840, 17415752, 21769690, 26123628, 32654535, 43539380, 52247256, 65309070, 87078760, 130618140, 261236280]

約数ペア:

[(1, 261236280), (2, 130618140), (3, 87078760), (4, 65309070), (5, 52247256), (6, 43539380), (8, 32654535), (10, 26123628), (12, 21769690), (15, 17415752), (17, 15366840), (20, 13061814), (24, 10884845), (30, 8707876), (34, 7683420), (37, 7060440), (40, 6530907), (51, 5122280), (60, 4353938), (68, 3841710), (74, 3530220), (85, 3073368), (102, 2561140), (111, 2353480), (120, 2176969), (136, 1920855), (148, 1765110), (170, 1536684), (185, 1412088), (204, 1280570), (222, 1176740), (255, 1024456), (296, 882555), (340, 768342), (370, 706044), (408, 640285), (444, 588370), (510, 512228), (555, 470696), (629, 415320), (680, 384171), (740, 353022), (888, 294185), (1020, 256114), (1110, 235348), (1258, 207660), (1480, 176511), (1887, 138440), (2040, 128057), (2220, 117674), (2516, 103830), (3145, 83064), (3461, 75480), (3774, 69220), (4440, 58837), (5032, 51915), (6290, 41532), (6922, 37740), (7548, 34610), (9435, 27688), (10383, 25160), (12580, 20766), (13844, 18870), (15096, 17305)]