31090545

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 56339712

約数和(自身を除く): 25249167

約数列:

[1, 3, 5, 9, 15, 37, 45, 71, 111, 185, 213, 263, 333, 355, 555, 639, 789, 1065, 1315, 1665, 2367, 2627, 3195, 3945, 7881, 9731, 11835, 13135, 18673, 23643, 29193, 39405, 48655, 56019, 87579, 93365, 118215, 145965, 168057, 280095, 437895, 690901, 840285, 2072703, 3454505, 6218109, 10363515, 31090545]

約数ペア:

[(1, 31090545), (3, 10363515), (5, 6218109), (9, 3454505), (15, 2072703), (37, 840285), (45, 690901), (71, 437895), (111, 280095), (185, 168057), (213, 145965), (263, 118215), (333, 93365), (355, 87579), (555, 56019), (639, 48655), (789, 39405), (1065, 29193), (1315, 23643), (1665, 18673), (2367, 13135), (2627, 11835), (3195, 9731), (3945, 7881)]