20915664

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5659}}^1$

素因数の和:5688

約数の個数: 80

約数和(自身を含む): 67376640

約数和(自身を除く): 46460976

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 16, 21, 22, 24, 28, 33, 42, 44, 48, 56, 66, 77, 84, 88, 112, 132, 154, 168, 176, 231, 264, 308, 336, 462, 528, 616, 924, 1232, 1848, 3696, 5659, 11318, 16977, 22636, 33954, 39613, 45272, 62249, 67908, 79226, 90544, 118839, 124498, 135816, 158452, 186747, 237678, 248996, 271632, 316904, 373494, 435743, 475356, 497992, 633808, 746988, 871486, 950712, 995984, 1307229, 1493976, 1742972, 1901424, 2614458, 2987952, 3485944, 5228916, 6971888, 10457832, 20915664]

約数ペア:

[(1, 20915664), (2, 10457832), (3, 6971888), (4, 5228916), (6, 3485944), (7, 2987952), (8, 2614458), (11, 1901424), (12, 1742972), (14, 1493976), (16, 1307229), (21, 995984), (22, 950712), (24, 871486), (28, 746988), (33, 633808), (42, 497992), (44, 475356), (48, 435743), (56, 373494), (66, 316904), (77, 271632), (84, 248996), (88, 237678), (112, 186747), (132, 158452), (154, 135816), (168, 124498), (176, 118839), (231, 90544), (264, 79226), (308, 67908), (336, 62249), (462, 45272), (528, 39613), (616, 33954), (924, 22636), (1232, 16977), (1848, 11318), (3696, 5659)]