213000240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{821}}^1$

素因数の和:907

約数の個数: 160

約数和(自身を含む): 704526336

約数和(自身を除く): 491526096

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 40, 46, 47, 48, 60, 69, 80, 92, 94, 115, 120, 138, 141, 184, 188, 230, 235, 240, 276, 282, 345, 368, 376, 460, 470, 552, 564, 690, 705, 752, 821, 920, 940, 1081, 1104, 1128, 1380, 1410, 1642, 1840, 1880, 2162, 2256, 2463, 2760, 2820, 3243, 3284, 3760, 4105, 4324, 4926, 5405, 5520, 5640, 6486, 6568, 8210, 8648, 9852, 10810, 11280, 12315, 12972, 13136, 16215, 16420, 17296, 18883, 19704, 21620, 24630, 25944, 32430, 32840, 37766, 38587, 39408, 43240, 49260, 51888, 56649, 64860, 65680, 75532, 77174, 86480, 94415, 98520, 113298, 115761, 129720, 151064, 154348, 188830, 192935, 197040, 226596, 231522, 259440, 283245, 302128, 308696, 377660, 385870, 453192, 463044, 566490, 578805, 617392, 755320, 771740, 887501, 906384, 926088, 1132980, 1157610, 1510640, 1543480, 1775002, 1852176, 2265960, 2315220, 2662503, 3086960, 3550004, 4437505, 4531920, 4630440, 5325006, 7100008, 8875010, 9260880, 10650012, 13312515, 14200016, 17750020, 21300024, 26625030, 35500040, 42600048, 53250060, 71000080, 106500120, 213000240]

約数ペア:

[(1, 213000240), (2, 106500120), (3, 71000080), (4, 53250060), (5, 42600048), (6, 35500040), (8, 26625030), (10, 21300024), (12, 17750020), (15, 14200016), (16, 13312515), (20, 10650012), (23, 9260880), (24, 8875010), (30, 7100008), (40, 5325006), (46, 4630440), (47, 4531920), (48, 4437505), (60, 3550004), (69, 3086960), (80, 2662503), (92, 2315220), (94, 2265960), (115, 1852176), (120, 1775002), (138, 1543480), (141, 1510640), (184, 1157610), (188, 1132980), (230, 926088), (235, 906384), (240, 887501), (276, 771740), (282, 755320), (345, 617392), (368, 578805), (376, 566490), (460, 463044), (470, 453192), (552, 385870), (564, 377660), (690, 308696), (705, 302128), (752, 283245), (821, 259440), (920, 231522), (940, 226596), (1081, 197040), (1104, 192935), (1128, 188830), (1380, 154348), (1410, 151064), (1642, 129720), (1840, 115761), (1880, 113298), (2162, 98520), (2256, 94415), (2463, 86480), (2760, 77174), (2820, 75532), (3243, 65680), (3284, 64860), (3760, 56649), (4105, 51888), (4324, 49260), (4926, 43240), (5405, 39408), (5520, 38587), (5640, 37766), (6486, 32840), (6568, 32430), (8210, 25944), (8648, 24630), (9852, 21620), (10810, 19704), (11280, 18883), (12315, 17296), (12972, 16420), (13136, 16215)]