209214140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{769}}^1$

素因数の和:1062

約数の個数: 48

約数和(自身を含む): 449137920

約数和(自身を除く): 239923780

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 223, 244, 305, 446, 610, 769, 892, 1115, 1220, 1538, 2230, 3076, 3845, 4460, 7690, 13603, 15380, 27206, 46909, 54412, 68015, 93818, 136030, 171487, 187636, 234545, 272060, 342974, 469090, 685948, 857435, 938180, 1714870, 3429740, 10460707, 20921414, 41842828, 52303535, 104607070, 209214140]

約数ペア:

[(1, 209214140), (2, 104607070), (4, 52303535), (5, 41842828), (10, 20921414), (20, 10460707), (61, 3429740), (122, 1714870), (223, 938180), (244, 857435), (305, 685948), (446, 469090), (610, 342974), (769, 272060), (892, 234545), (1115, 187636), (1220, 171487), (1538, 136030), (2230, 93818), (3076, 68015), (3845, 54412), (4460, 46909), (7690, 27206), (13603, 15380)]