289861624

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{64817}}^1$

素因数の和:64879

約数の個数: 32

約数和(自身を含む): 598918320

約数和(自身を除く): 309056696

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 64817, 129634, 259268, 518536, 842621, 1685242, 2787131, 3370484, 5574262, 6740968, 11148524, 22297048, 36232703, 72465406, 144930812, 289861624]

約数ペア:

[(1, 289861624), (2, 144930812), (4, 72465406), (8, 36232703), (13, 22297048), (26, 11148524), (43, 6740968), (52, 5574262), (86, 3370484), (104, 2787131), (172, 1685242), (344, 842621), (559, 518536), (1118, 259268), (2236, 129634), (4472, 64817)]