71904040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2609}}^1$

素因数の和:2686

約数の個数: 64

約数和(自身を含む): 177584400

約数和(自身を除く): 105680360

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 2120, 2609, 2756, 3445, 5218, 5512, 6890, 10436, 13045, 13780, 20872, 26090, 27560, 33917, 52180, 67834, 104360, 135668, 138277, 169585, 271336, 276554, 339170, 553108, 678340, 691385, 1106216, 1356680, 1382770, 1797601, 2765540, 3595202, 5531080, 7190404, 8988005, 14380808, 17976010, 35952020, 71904040]

約数ペア:

[(1, 71904040), (2, 35952020), (4, 17976010), (5, 14380808), (8, 8988005), (10, 7190404), (13, 5531080), (20, 3595202), (26, 2765540), (40, 1797601), (52, 1382770), (53, 1356680), (65, 1106216), (104, 691385), (106, 678340), (130, 553108), (212, 339170), (260, 276554), (265, 271336), (424, 169585), (520, 138277), (530, 135668), (689, 104360), (1060, 67834), (1378, 52180), (2120, 33917), (2609, 27560), (2756, 26090), (3445, 20872), (5218, 13780), (5512, 13045), (6890, 10436)]