171630920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{229}}^1\times {\mathrm{457}}^1$

素因数の和:738

約数の個数: 64

約数和(自身を含む): 398185200

約数和(自身を除く): 226554280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 229, 328, 410, 457, 458, 820, 914, 916, 1145, 1640, 1828, 1832, 2285, 2290, 3656, 4570, 4580, 9140, 9160, 9389, 18280, 18737, 18778, 37474, 37556, 46945, 74948, 75112, 93685, 93890, 104653, 149896, 187370, 187780, 209306, 374740, 375560, 418612, 523265, 749480, 837224, 1046530, 2093060, 4186120, 4290773, 8581546, 17163092, 21453865, 34326184, 42907730, 85815460, 171630920]

約数ペア:

[(1, 171630920), (2, 85815460), (4, 42907730), (5, 34326184), (8, 21453865), (10, 17163092), (20, 8581546), (40, 4290773), (41, 4186120), (82, 2093060), (164, 1046530), (205, 837224), (229, 749480), (328, 523265), (410, 418612), (457, 375560), (458, 374740), (820, 209306), (914, 187780), (916, 187370), (1145, 149896), (1640, 104653), (1828, 93890), (1832, 93685), (2285, 75112), (2290, 74948), (3656, 46945), (4570, 37556), (4580, 37474), (9140, 18778), (9160, 18737), (9389, 18280)]