28731668

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{419}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 60211200

約数和(自身を除く): 31479532

約数列:

[1, 2, 4, 7, 14, 28, 31, 62, 79, 124, 158, 217, 316, 419, 434, 553, 838, 868, 1106, 1676, 2212, 2449, 2933, 4898, 5866, 9796, 11732, 12989, 17143, 25978, 33101, 34286, 51956, 66202, 68572, 90923, 132404, 181846, 231707, 363692, 463414, 926828, 1026131, 2052262, 4104524, 7182917, 14365834, 28731668]

約数ペア:

[(1, 28731668), (2, 14365834), (4, 7182917), (7, 4104524), (14, 2052262), (28, 1026131), (31, 926828), (62, 463414), (79, 363692), (124, 231707), (158, 181846), (217, 132404), (316, 90923), (419, 68572), (434, 66202), (553, 51956), (838, 34286), (868, 33101), (1106, 25978), (1676, 17143), (2212, 12989), (2449, 11732), (2933, 9796), (4898, 5866)]