28680808

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{211}}^1\times {\mathrm{1307}}^1$

素因数の和:1537

約数の個数: 32

約数和(自身を含む): 58232160

約数和(自身を除く): 29551352

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 211, 422, 844, 1307, 1688, 2614, 2743, 5228, 5486, 10456, 10972, 16991, 21944, 33982, 67964, 135928, 275777, 551554, 1103108, 2206216, 3585101, 7170202, 14340404, 28680808]

約数ペア:

[(1, 28680808), (2, 14340404), (4, 7170202), (8, 3585101), (13, 2206216), (26, 1103108), (52, 551554), (104, 275777), (211, 135928), (422, 67964), (844, 33982), (1307, 21944), (1688, 16991), (2614, 10972), (2743, 10456), (5228, 5486)]