640307718

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{41801}}^1$

素因数の和:41869

約数の個数: 48

約数和(自身を含む): 1486813536

約数和(自身を除く): 846505818

約数列:

[1, 2, 3, 6, 9, 18, 23, 37, 46, 69, 74, 111, 138, 207, 222, 333, 414, 666, 851, 1702, 2553, 5106, 7659, 15318, 41801, 83602, 125403, 250806, 376209, 752418, 961423, 1546637, 1922846, 2884269, 3093274, 4639911, 5768538, 8652807, 9279822, 13919733, 17305614, 27839466, 35572651, 71145302, 106717953, 213435906, 320153859, 640307718]

約数ペア:

[(1, 640307718), (2, 320153859), (3, 213435906), (6, 106717953), (9, 71145302), (18, 35572651), (23, 27839466), (37, 17305614), (46, 13919733), (69, 9279822), (74, 8652807), (111, 5768538), (138, 4639911), (207, 3093274), (222, 2884269), (333, 1922846), (414, 1546637), (666, 961423), (851, 752418), (1702, 376209), (2553, 250806), (5106, 125403), (7659, 83602), (15318, 41801)]