171781280

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{467}}^1$

素因数の和:523

約数の個数: 144

約数和(自身を含む): 470564640

約数和(自身を除く): 298783360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 55, 76, 80, 88, 95, 110, 121, 152, 160, 176, 190, 209, 220, 242, 304, 352, 380, 418, 440, 467, 484, 605, 608, 760, 836, 880, 934, 968, 1045, 1210, 1520, 1672, 1760, 1868, 1936, 2090, 2299, 2335, 2420, 3040, 3344, 3736, 3872, 4180, 4598, 4670, 4840, 5137, 6688, 7472, 8360, 8873, 9196, 9340, 9680, 10274, 11495, 14944, 16720, 17746, 18392, 18680, 19360, 20548, 22990, 25685, 33440, 35492, 36784, 37360, 41096, 44365, 45980, 51370, 56507, 70984, 73568, 74720, 82192, 88730, 91960, 97603, 102740, 113014, 141968, 164384, 177460, 183920, 195206, 205480, 226028, 282535, 283936, 354920, 367840, 390412, 410960, 452056, 488015, 565070, 709840, 780824, 821920, 904112, 976030, 1073633, 1130140, 1419680, 1561648, 1808224, 1952060, 2147266, 2260280, 3123296, 3904120, 4294532, 4520560, 5368165, 7808240, 8589064, 9041120, 10736330, 15616480, 17178128, 21472660, 34356256, 42945320, 85890640, 171781280]

約数ペア:

[(1, 171781280), (2, 85890640), (4, 42945320), (5, 34356256), (8, 21472660), (10, 17178128), (11, 15616480), (16, 10736330), (19, 9041120), (20, 8589064), (22, 7808240), (32, 5368165), (38, 4520560), (40, 4294532), (44, 3904120), (55, 3123296), (76, 2260280), (80, 2147266), (88, 1952060), (95, 1808224), (110, 1561648), (121, 1419680), (152, 1130140), (160, 1073633), (176, 976030), (190, 904112), (209, 821920), (220, 780824), (242, 709840), (304, 565070), (352, 488015), (380, 452056), (418, 410960), (440, 390412), (467, 367840), (484, 354920), (605, 283936), (608, 282535), (760, 226028), (836, 205480), (880, 195206), (934, 183920), (968, 177460), (1045, 164384), (1210, 141968), (1520, 113014), (1672, 102740), (1760, 97603), (1868, 91960), (1936, 88730), (2090, 82192), (2299, 74720), (2335, 73568), (2420, 70984), (3040, 56507), (3344, 51370), (3736, 45980), (3872, 44365), (4180, 41096), (4598, 37360), (4670, 36784), (4840, 35492), (5137, 33440), (6688, 25685), (7472, 22990), (8360, 20548), (8873, 19360), (9196, 18680), (9340, 18392), (9680, 17746), (10274, 16720), (11495, 14944)]