25291515

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:411

約数の個数: 32

約数和(自身を含む): 41640192

約数和(自身を除く): 16348677

約数列:

[1, 3, 5, 15, 61, 131, 183, 211, 305, 393, 633, 655, 915, 1055, 1965, 3165, 7991, 12871, 23973, 27641, 38613, 39955, 64355, 82923, 119865, 138205, 193065, 414615, 1686101, 5058303, 8430505, 25291515]

約数ペア:

[(1, 25291515), (3, 8430505), (5, 5058303), (15, 1686101), (61, 414615), (131, 193065), (183, 138205), (211, 119865), (305, 82923), (393, 64355), (633, 39955), (655, 38613), (915, 27641), (1055, 23973), (1965, 12871), (3165, 7991)]