31587990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{349}}^1\times {\mathrm{431}}^1$

素因数の和:797

約数の個数: 64

約数和(自身を含む): 87091200

約数和(自身を除く): 55503210

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 210, 349, 431, 698, 862, 1047, 1293, 1745, 2094, 2155, 2443, 2586, 3017, 3490, 4310, 4886, 5235, 6034, 6465, 7329, 9051, 10470, 12215, 12930, 14658, 15085, 18102, 24430, 30170, 36645, 45255, 73290, 90510, 150419, 300838, 451257, 752095, 902514, 1052933, 1504190, 2105866, 2256285, 3158799, 4512570, 5264665, 6317598, 10529330, 15793995, 31587990]

約数ペア:

[(1, 31587990), (2, 15793995), (3, 10529330), (5, 6317598), (6, 5264665), (7, 4512570), (10, 3158799), (14, 2256285), (15, 2105866), (21, 1504190), (30, 1052933), (35, 902514), (42, 752095), (70, 451257), (105, 300838), (210, 150419), (349, 90510), (431, 73290), (698, 45255), (862, 36645), (1047, 30170), (1293, 24430), (1745, 18102), (2094, 15085), (2155, 14658), (2443, 12930), (2586, 12215), (3017, 10470), (3490, 9051), (4310, 7329), (4886, 6465), (5235, 6034)]