21064560

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:207

約数の個数: 160

約数和(自身を含む): 72852480

約数和(自身を除く): 51787920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 79, 80, 88, 101, 110, 120, 132, 158, 165, 176, 202, 220, 237, 240, 264, 303, 316, 330, 395, 404, 440, 474, 505, 528, 606, 632, 660, 790, 808, 869, 880, 948, 1010, 1111, 1185, 1212, 1264, 1320, 1515, 1580, 1616, 1738, 1896, 2020, 2222, 2370, 2424, 2607, 2640, 3030, 3160, 3333, 3476, 3792, 4040, 4345, 4444, 4740, 4848, 5214, 5555, 6060, 6320, 6666, 6952, 7979, 8080, 8690, 8888, 9480, 10428, 11110, 12120, 13035, 13332, 13904, 15958, 16665, 17380, 17776, 18960, 20856, 22220, 23937, 24240, 26070, 26664, 31916, 33330, 34760, 39895, 41712, 44440, 47874, 52140, 53328, 63832, 66660, 69520, 79790, 87769, 88880, 95748, 104280, 119685, 127664, 133320, 159580, 175538, 191496, 208560, 239370, 263307, 266640, 319160, 351076, 382992, 438845, 478740, 526614, 638320, 702152, 877690, 957480, 1053228, 1316535, 1404304, 1755380, 1914960, 2106456, 2633070, 3510760, 4212912, 5266140, 7021520, 10532280, 21064560]

約数ペア:

[(1, 21064560), (2, 10532280), (3, 7021520), (4, 5266140), (5, 4212912), (6, 3510760), (8, 2633070), (10, 2106456), (11, 1914960), (12, 1755380), (15, 1404304), (16, 1316535), (20, 1053228), (22, 957480), (24, 877690), (30, 702152), (33, 638320), (40, 526614), (44, 478740), (48, 438845), (55, 382992), (60, 351076), (66, 319160), (79, 266640), (80, 263307), (88, 239370), (101, 208560), (110, 191496), (120, 175538), (132, 159580), (158, 133320), (165, 127664), (176, 119685), (202, 104280), (220, 95748), (237, 88880), (240, 87769), (264, 79790), (303, 69520), (316, 66660), (330, 63832), (395, 53328), (404, 52140), (440, 47874), (474, 44440), (505, 41712), (528, 39895), (606, 34760), (632, 33330), (660, 31916), (790, 26664), (808, 26070), (869, 24240), (880, 23937), (948, 22220), (1010, 20856), (1111, 18960), (1185, 17776), (1212, 17380), (1264, 16665), (1320, 15958), (1515, 13904), (1580, 13332), (1616, 13035), (1738, 12120), (1896, 11110), (2020, 10428), (2222, 9480), (2370, 8888), (2424, 8690), (2607, 8080), (2640, 7979), (3030, 6952), (3160, 6666), (3333, 6320), (3476, 6060), (3792, 5555), (4040, 5214), (4345, 4848), (4444, 4740)]