490816976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{13037}}^1$

素因数の和:13239

約数の個数: 40

約数和(自身を含む): 1029845544

約数和(自身を除く): 539028568

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 181, 208, 362, 724, 1448, 2353, 2896, 4706, 9412, 13037, 18824, 26074, 37648, 52148, 104296, 169481, 208592, 338962, 677924, 1355848, 2359697, 2711696, 4719394, 9438788, 18877576, 30676061, 37755152, 61352122, 122704244, 245408488, 490816976]

約数ペア:

[(1, 490816976), (2, 245408488), (4, 122704244), (8, 61352122), (13, 37755152), (16, 30676061), (26, 18877576), (52, 9438788), (104, 4719394), (181, 2711696), (208, 2359697), (362, 1355848), (724, 677924), (1448, 338962), (2353, 208592), (2896, 169481), (4706, 104296), (9412, 52148), (13037, 37648), (18824, 26074)]