13720445

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1$

素因数の和:221

約数の個数: 32

約数和(自身を含む): 18579456

約数和(自身を除く): 4859011

約数列:

[1, 5, 17, 31, 41, 85, 127, 155, 205, 527, 635, 697, 1271, 2159, 2635, 3485, 3937, 5207, 6355, 10795, 19685, 21607, 26035, 66929, 88519, 108035, 161417, 334645, 442595, 807085, 2744089, 13720445]

約数ペア:

[(1, 13720445), (5, 2744089), (17, 807085), (31, 442595), (41, 334645), (85, 161417), (127, 108035), (155, 88519), (205, 66929), (527, 26035), (635, 21607), (697, 19685), (1271, 10795), (2159, 6355), (2635, 5207), (3485, 3937)]