20528044

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:298

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 19691156

約数列:

[1, 2, 4, 17, 34, 37, 41, 68, 74, 82, 148, 164, 199, 398, 629, 697, 796, 1258, 1394, 1517, 2516, 2788, 3034, 3383, 6068, 6766, 7363, 8159, 13532, 14726, 16318, 25789, 29452, 32636, 51578, 103156, 125171, 138703, 250342, 277406, 301883, 500684, 554812, 603766, 1207532, 5132011, 10264022, 20528044]

約数ペア:

[(1, 20528044), (2, 10264022), (4, 5132011), (17, 1207532), (34, 603766), (37, 554812), (41, 500684), (68, 301883), (74, 277406), (82, 250342), (148, 138703), (164, 125171), (199, 103156), (398, 51578), (629, 32636), (697, 29452), (796, 25789), (1258, 16318), (1394, 14726), (1517, 13532), (2516, 8159), (2788, 7363), (3034, 6766), (3383, 6068)]