1520578520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{311}}^1\times {\mathrm{3943}}^1$

素因数の和:4296

約数の個数: 64

約数和(自身を含む): 3543920640

約数和(自身を除く): 2023342120

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 311, 620, 622, 1240, 1244, 1555, 2488, 3110, 3943, 6220, 7886, 9641, 12440, 15772, 19282, 19715, 31544, 38564, 39430, 48205, 77128, 78860, 96410, 122233, 157720, 192820, 244466, 385640, 488932, 611165, 977864, 1222330, 1226273, 2444660, 2452546, 4889320, 4905092, 6131365, 9810184, 12262730, 24525460, 38014463, 49050920, 76028926, 152057852, 190072315, 304115704, 380144630, 760289260, 1520578520]

約数ペア:

[(1, 1520578520), (2, 760289260), (4, 380144630), (5, 304115704), (8, 190072315), (10, 152057852), (20, 76028926), (31, 49050920), (40, 38014463), (62, 24525460), (124, 12262730), (155, 9810184), (248, 6131365), (310, 4905092), (311, 4889320), (620, 2452546), (622, 2444660), (1240, 1226273), (1244, 1222330), (1555, 977864), (2488, 611165), (3110, 488932), (3943, 385640), (6220, 244466), (7886, 192820), (9641, 157720), (12440, 122233), (15772, 96410), (19282, 78860), (19715, 77128), (31544, 48205), (38564, 39430)]