81103316

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 168591360

約数和(自身を除く): 87488044

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 223, 419, 434, 446, 838, 868, 892, 1561, 1676, 2933, 3122, 5866, 6244, 6913, 11732, 12989, 13826, 25978, 27652, 48391, 51956, 90923, 93437, 96782, 181846, 186874, 193564, 363692, 373748, 654059, 1308118, 2616236, 2896547, 5793094, 11586188, 20275829, 40551658, 81103316]

約数ペア:

[(1, 81103316), (2, 40551658), (4, 20275829), (7, 11586188), (14, 5793094), (28, 2896547), (31, 2616236), (62, 1308118), (124, 654059), (217, 373748), (223, 363692), (419, 193564), (434, 186874), (446, 181846), (838, 96782), (868, 93437), (892, 90923), (1561, 51956), (1676, 48391), (2933, 27652), (3122, 25978), (5866, 13826), (6244, 12989), (6913, 11732)]