39881725

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^2\times {\mathrm{73}}^1$

素因数の和:178

約数の個数: 36

約数和(自身を含む): 55335868

約数和(自身を除く): 15454143

約数列:

[1, 5, 13, 25, 41, 65, 73, 205, 325, 365, 533, 949, 1025, 1681, 1825, 2665, 2993, 4745, 8405, 13325, 14965, 21853, 23725, 38909, 42025, 74825, 109265, 122713, 194545, 546325, 613565, 972725, 1595269, 3067825, 7976345, 39881725]

約数ペア:

[(1, 39881725), (5, 7976345), (13, 3067825), (25, 1595269), (41, 972725), (65, 613565), (73, 546325), (205, 194545), (325, 122713), (365, 109265), (533, 74825), (949, 42025), (1025, 38909), (1681, 23725), (1825, 21853), (2665, 14965), (2993, 13325), (4745, 8405)]