28028770

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{409}}^1$

素因数の和:523

約数の個数: 64

約数和(自身を含む): 63763200

約数和(自身を除く): 35734430

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 89, 110, 154, 178, 385, 409, 445, 623, 770, 818, 890, 979, 1246, 1958, 2045, 2863, 3115, 4090, 4499, 4895, 5726, 6230, 6853, 8998, 9790, 13706, 14315, 22495, 28630, 31493, 34265, 36401, 44990, 62986, 68530, 72802, 157465, 182005, 254807, 314930, 364010, 400411, 509614, 800822, 1274035, 2002055, 2548070, 2802877, 4004110, 5605754, 14014385, 28028770]

約数ペア:

[(1, 28028770), (2, 14014385), (5, 5605754), (7, 4004110), (10, 2802877), (11, 2548070), (14, 2002055), (22, 1274035), (35, 800822), (55, 509614), (70, 400411), (77, 364010), (89, 314930), (110, 254807), (154, 182005), (178, 157465), (385, 72802), (409, 68530), (445, 62986), (623, 44990), (770, 36401), (818, 34265), (890, 31493), (979, 28630), (1246, 22495), (1958, 14315), (2045, 13706), (2863, 9790), (3115, 8998), (4090, 6853), (4499, 6230), (4895, 5726)]