220718785

素因数分解:

$5^1\times 7^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:183

約数の個数: 64

約数和(自身を含む): 328204800

約数和(自身を除く): 107486015

約数列:

[1, 5, 7, 35, 41, 43, 49, 73, 205, 215, 245, 287, 301, 343, 365, 511, 1435, 1505, 1715, 1763, 2009, 2107, 2555, 2993, 3139, 3577, 8815, 10045, 10535, 12341, 14063, 14749, 14965, 15695, 17885, 20951, 21973, 25039, 61705, 70315, 73745, 86387, 104755, 109865, 125195, 128699, 146657, 153811, 431935, 604709, 643495, 733285, 769055, 900893, 1026599, 1076677, 3023545, 4504465, 5132995, 5383385, 6306251, 31531255, 44143757, 220718785]

約数ペア:

[(1, 220718785), (5, 44143757), (7, 31531255), (35, 6306251), (41, 5383385), (43, 5132995), (49, 4504465), (73, 3023545), (205, 1076677), (215, 1026599), (245, 900893), (287, 769055), (301, 733285), (343, 643495), (365, 604709), (511, 431935), (1435, 153811), (1505, 146657), (1715, 128699), (1763, 125195), (2009, 109865), (2107, 104755), (2555, 86387), (2993, 73745), (3139, 70315), (3577, 61705), (8815, 25039), (10045, 21973), (10535, 20951), (12341, 17885), (14063, 15695), (14749, 14965)]