261478880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{125711}}^1$

素因数の和:125739

約数の個数: 48

約数和(自身を含む): 665267904

約数和(自身を除く): 403789024

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 125711, 251422, 502844, 628555, 1005688, 1257110, 1634243, 2011376, 2514220, 3268486, 4022752, 5028440, 6536972, 8171215, 10056880, 13073944, 16342430, 20113760, 26147888, 32684860, 52295776, 65369720, 130739440, 261478880]

約数ペア:

[(1, 261478880), (2, 130739440), (4, 65369720), (5, 52295776), (8, 32684860), (10, 26147888), (13, 20113760), (16, 16342430), (20, 13073944), (26, 10056880), (32, 8171215), (40, 6536972), (52, 5028440), (65, 4022752), (80, 3268486), (104, 2514220), (130, 2011376), (160, 1634243), (208, 1257110), (260, 1005688), (416, 628555), (520, 502844), (1040, 251422), (2080, 125711)]