205455320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{523}}^1$

素因数の和:625

約数の個数: 128

約数和(自身を含む): 561392640

約数和(自身を除く): 355937320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 61, 70, 92, 115, 122, 140, 161, 184, 230, 244, 280, 305, 322, 427, 460, 488, 523, 610, 644, 805, 854, 920, 1046, 1220, 1288, 1403, 1610, 1708, 2092, 2135, 2440, 2615, 2806, 3220, 3416, 3661, 4184, 4270, 5230, 5612, 6440, 7015, 7322, 8540, 9821, 10460, 11224, 12029, 14030, 14644, 17080, 18305, 19642, 20920, 24058, 28060, 29288, 31903, 36610, 39284, 48116, 49105, 56120, 60145, 63806, 73220, 78568, 84203, 96232, 98210, 120290, 127612, 146440, 159515, 168406, 196420, 223321, 240580, 255224, 319030, 336812, 392840, 421015, 446642, 481160, 638060, 673624, 733769, 842030, 893284, 1116605, 1276120, 1467538, 1684060, 1786568, 2233210, 2935076, 3368120, 3668845, 4466420, 5136383, 5870152, 7337690, 8932840, 10272766, 14675380, 20545532, 25681915, 29350760, 41091064, 51363830, 102727660, 205455320]

約数ペア:

[(1, 205455320), (2, 102727660), (4, 51363830), (5, 41091064), (7, 29350760), (8, 25681915), (10, 20545532), (14, 14675380), (20, 10272766), (23, 8932840), (28, 7337690), (35, 5870152), (40, 5136383), (46, 4466420), (56, 3668845), (61, 3368120), (70, 2935076), (92, 2233210), (115, 1786568), (122, 1684060), (140, 1467538), (161, 1276120), (184, 1116605), (230, 893284), (244, 842030), (280, 733769), (305, 673624), (322, 638060), (427, 481160), (460, 446642), (488, 421015), (523, 392840), (610, 336812), (644, 319030), (805, 255224), (854, 240580), (920, 223321), (1046, 196420), (1220, 168406), (1288, 159515), (1403, 146440), (1610, 127612), (1708, 120290), (2092, 98210), (2135, 96232), (2440, 84203), (2615, 78568), (2806, 73220), (3220, 63806), (3416, 60145), (3661, 56120), (4184, 49105), (4270, 48116), (5230, 39284), (5612, 36610), (6440, 31903), (7015, 29288), (7322, 28060), (8540, 24058), (9821, 20920), (10460, 19642), (11224, 18305), (12029, 17080), (14030, 14644)]