8889797960

素因数分解:

$2^3\times 5^1\times {\mathrm{1831}}^1\times {\mathrm{121379}}^1$

素因数の和:123221

約数の個数: 32

約数和(自身を含む): 20013134400

約数和(自身を除く): 11123336440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1831, 3662, 7324, 9155, 14648, 18310, 36620, 73240, 121379, 242758, 485516, 606895, 971032, 1213790, 2427580, 4855160, 222244949, 444489898, 888979796, 1111224745, 1777959592, 2222449490, 4444898980, 8889797960]

約数ペア:

[(1, 8889797960), (2, 4444898980), (4, 2222449490), (5, 1777959592), (8, 1111224745), (10, 888979796), (20, 444489898), (40, 222244949), (1831, 4855160), (3662, 2427580), (7324, 1213790), (9155, 971032), (14648, 606895), (18310, 485516), (36620, 242758), (73240, 121379)]