400640880

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{353}}^1\times {\mathrm{4729}}^1$

素因数の和:5098

約数の個数: 80

約数和(自身を含む): 1245768480

約数和(自身を除く): 845127600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 353, 706, 1059, 1412, 1765, 2118, 2824, 3530, 4236, 4729, 5295, 5648, 7060, 8472, 9458, 10590, 14120, 14187, 16944, 18916, 21180, 23645, 28240, 28374, 37832, 42360, 47290, 56748, 70935, 75664, 84720, 94580, 113496, 141870, 189160, 226992, 283740, 378320, 567480, 1134960, 1669337, 3338674, 5008011, 6677348, 8346685, 10016022, 13354696, 16693370, 20032044, 25040055, 26709392, 33386740, 40064088, 50080110, 66773480, 80128176, 100160220, 133546960, 200320440, 400640880]

約数ペア:

[(1, 400640880), (2, 200320440), (3, 133546960), (4, 100160220), (5, 80128176), (6, 66773480), (8, 50080110), (10, 40064088), (12, 33386740), (15, 26709392), (16, 25040055), (20, 20032044), (24, 16693370), (30, 13354696), (40, 10016022), (48, 8346685), (60, 6677348), (80, 5008011), (120, 3338674), (240, 1669337), (353, 1134960), (706, 567480), (1059, 378320), (1412, 283740), (1765, 226992), (2118, 189160), (2824, 141870), (3530, 113496), (4236, 94580), (4729, 84720), (5295, 75664), (5648, 70935), (7060, 56748), (8472, 47290), (9458, 42360), (10590, 37832), (14120, 28374), (14187, 28240), (16944, 23645), (18916, 21180)]