31311700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1091}}^1$

素因数の和:1153

約数の個数: 72

約数和(自身を含む): 79619904

約数和(自身を除く): 48308204

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 41, 50, 70, 82, 100, 140, 164, 175, 205, 287, 350, 410, 574, 700, 820, 1025, 1091, 1148, 1435, 2050, 2182, 2870, 4100, 4364, 5455, 5740, 7175, 7637, 10910, 14350, 15274, 21820, 27275, 28700, 30548, 38185, 44731, 54550, 76370, 89462, 109100, 152740, 178924, 190925, 223655, 313117, 381850, 447310, 626234, 763700, 894620, 1118275, 1252468, 1565585, 2236550, 3131170, 4473100, 6262340, 7827925, 15655850, 31311700]

約数ペア:

[(1, 31311700), (2, 15655850), (4, 7827925), (5, 6262340), (7, 4473100), (10, 3131170), (14, 2236550), (20, 1565585), (25, 1252468), (28, 1118275), (35, 894620), (41, 763700), (50, 626234), (70, 447310), (82, 381850), (100, 313117), (140, 223655), (164, 190925), (175, 178924), (205, 152740), (287, 109100), (350, 89462), (410, 76370), (574, 54550), (700, 44731), (820, 38185), (1025, 30548), (1091, 28700), (1148, 27275), (1435, 21820), (2050, 15274), (2182, 14350), (2870, 10910), (4100, 7637), (4364, 7175), (5455, 5740)]