281516840

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13613}}^1$

素因数の和:13682

約数の個数: 64

約数和(自身を含む): 705749760

約数和(自身を除く): 424232920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 940, 1034, 1880, 2068, 2585, 4136, 5170, 10340, 13613, 20680, 27226, 54452, 68065, 108904, 136130, 149743, 272260, 299486, 544520, 598972, 639811, 748715, 1197944, 1279622, 1497430, 2559244, 2994860, 3199055, 5118488, 5989720, 6398110, 7037921, 12796220, 14075842, 25592440, 28151684, 35189605, 56303368, 70379210, 140758420, 281516840]

約数ペア:

[(1, 281516840), (2, 140758420), (4, 70379210), (5, 56303368), (8, 35189605), (10, 28151684), (11, 25592440), (20, 14075842), (22, 12796220), (40, 7037921), (44, 6398110), (47, 5989720), (55, 5118488), (88, 3199055), (94, 2994860), (110, 2559244), (188, 1497430), (220, 1279622), (235, 1197944), (376, 748715), (440, 639811), (470, 598972), (517, 544520), (940, 299486), (1034, 272260), (1880, 149743), (2068, 136130), (2585, 108904), (4136, 68065), (5170, 54452), (10340, 27226), (13613, 20680)]