720291884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{227}}^1\times {\mathrm{439}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 1376390400

約数和(自身を除く): 656098516

約数列:

[1, 2, 4, 13, 26, 52, 139, 227, 278, 439, 454, 556, 878, 908, 1756, 1807, 2951, 3614, 5707, 5902, 7228, 11414, 11804, 22828, 31553, 61021, 63106, 99653, 122042, 126212, 199306, 244084, 398612, 410189, 793273, 820378, 1295489, 1586546, 1640756, 2590978, 3173092, 5181956, 13851767, 27703534, 55407068, 180072971, 360145942, 720291884]

約数ペア:

[(1, 720291884), (2, 360145942), (4, 180072971), (13, 55407068), (26, 27703534), (52, 13851767), (139, 5181956), (227, 3173092), (278, 2590978), (439, 1640756), (454, 1586546), (556, 1295489), (878, 820378), (908, 793273), (1756, 410189), (1807, 398612), (2951, 244084), (3614, 199306), (5707, 126212), (5902, 122042), (7228, 99653), (11414, 63106), (11804, 61021), (22828, 31553)]