74998840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 203212800

約数和(自身を除く): 128213960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 47, 56, 70, 82, 94, 139, 140, 164, 188, 205, 235, 278, 280, 287, 328, 329, 376, 410, 470, 556, 574, 658, 695, 820, 940, 973, 1112, 1148, 1316, 1390, 1435, 1640, 1645, 1880, 1927, 1946, 2296, 2632, 2780, 2870, 3290, 3854, 3892, 4865, 5560, 5699, 5740, 6533, 6580, 7708, 7784, 9635, 9730, 11398, 11480, 13066, 13160, 13489, 15416, 19270, 19460, 22796, 26132, 26978, 28495, 32665, 38540, 38920, 39893, 45592, 45731, 52264, 53956, 56990, 65330, 67445, 77080, 79786, 91462, 107912, 113980, 130660, 134890, 159572, 182924, 199465, 227960, 228655, 261320, 267853, 269780, 319144, 365848, 398930, 457310, 535706, 539560, 797860, 914620, 1071412, 1339265, 1595720, 1829240, 1874971, 2142824, 2678530, 3749942, 5357060, 7499884, 9374855, 10714120, 14999768, 18749710, 37499420, 74998840]

約数ペア:

[(1, 74998840), (2, 37499420), (4, 18749710), (5, 14999768), (7, 10714120), (8, 9374855), (10, 7499884), (14, 5357060), (20, 3749942), (28, 2678530), (35, 2142824), (40, 1874971), (41, 1829240), (47, 1595720), (56, 1339265), (70, 1071412), (82, 914620), (94, 797860), (139, 539560), (140, 535706), (164, 457310), (188, 398930), (205, 365848), (235, 319144), (278, 269780), (280, 267853), (287, 261320), (328, 228655), (329, 227960), (376, 199465), (410, 182924), (470, 159572), (556, 134890), (574, 130660), (658, 113980), (695, 107912), (820, 91462), (940, 79786), (973, 77080), (1112, 67445), (1148, 65330), (1316, 56990), (1390, 53956), (1435, 52264), (1640, 45731), (1645, 45592), (1880, 39893), (1927, 38920), (1946, 38540), (2296, 32665), (2632, 28495), (2780, 26978), (2870, 26132), (3290, 22796), (3854, 19460), (3892, 19270), (4865, 15416), (5560, 13489), (5699, 13160), (5740, 13066), (6533, 11480), (6580, 11398), (7708, 9730), (7784, 9635)]