20004050

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{983}}^1$

素因数の和:1043

約数の個数: 48

約数和(自身を含む): 41729472

約数和(自身を除く): 21725422

約数列:

[1, 2, 5, 10, 11, 22, 25, 37, 50, 55, 74, 110, 185, 275, 370, 407, 550, 814, 925, 983, 1850, 1966, 2035, 4070, 4915, 9830, 10175, 10813, 20350, 21626, 24575, 36371, 49150, 54065, 72742, 108130, 181855, 270325, 363710, 400081, 540650, 800162, 909275, 1818550, 2000405, 4000810, 10002025, 20004050]

約数ペア:

[(1, 20004050), (2, 10002025), (5, 4000810), (10, 2000405), (11, 1818550), (22, 909275), (25, 800162), (37, 540650), (50, 400081), (55, 363710), (74, 270325), (110, 181855), (185, 108130), (275, 72742), (370, 54065), (407, 49150), (550, 36371), (814, 24575), (925, 21626), (983, 20350), (1850, 10813), (1966, 10175), (2035, 9830), (4070, 4915)]