20294580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{827}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 57032640

約数和(自身を除く): 36738060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 409, 818, 827, 1227, 1636, 1654, 2045, 2454, 2481, 3308, 4090, 4135, 4908, 4962, 6135, 8180, 8270, 9924, 12270, 12405, 16540, 24540, 24810, 49620, 338243, 676486, 1014729, 1352972, 1691215, 2029458, 3382430, 4058916, 5073645, 6764860, 10147290, 20294580]

約数ペア:

[(1, 20294580), (2, 10147290), (3, 6764860), (4, 5073645), (5, 4058916), (6, 3382430), (10, 2029458), (12, 1691215), (15, 1352972), (20, 1014729), (30, 676486), (60, 338243), (409, 49620), (818, 24810), (827, 24540), (1227, 16540), (1636, 12405), (1654, 12270), (2045, 9924), (2454, 8270), (2481, 8180), (3308, 6135), (4090, 4962), (4135, 4908)]