205517840

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4969}}^1$

素因数の和:5040

約数の個数: 80

約数和(自身を含む): 532465920

約数和(自身を除く): 326948080

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 47, 55, 80, 88, 94, 110, 176, 188, 220, 235, 376, 440, 470, 517, 752, 880, 940, 1034, 1880, 2068, 2585, 3760, 4136, 4969, 5170, 8272, 9938, 10340, 19876, 20680, 24845, 39752, 41360, 49690, 54659, 79504, 99380, 109318, 198760, 218636, 233543, 273295, 397520, 437272, 467086, 546590, 874544, 934172, 1093180, 1167715, 1868344, 2186360, 2335430, 2568973, 3736688, 4372720, 4670860, 5137946, 9341720, 10275892, 12844865, 18683440, 20551784, 25689730, 41103568, 51379460, 102758920, 205517840]

約数ペア:

[(1, 205517840), (2, 102758920), (4, 51379460), (5, 41103568), (8, 25689730), (10, 20551784), (11, 18683440), (16, 12844865), (20, 10275892), (22, 9341720), (40, 5137946), (44, 4670860), (47, 4372720), (55, 3736688), (80, 2568973), (88, 2335430), (94, 2186360), (110, 1868344), (176, 1167715), (188, 1093180), (220, 934172), (235, 874544), (376, 546590), (440, 467086), (470, 437272), (517, 397520), (752, 273295), (880, 233543), (940, 218636), (1034, 198760), (1880, 109318), (2068, 99380), (2585, 79504), (3760, 54659), (4136, 49690), (4969, 41360), (5170, 39752), (8272, 24845), (9938, 20680), (10340, 19876)]