18738845

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{283}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 25764480

約数和(自身を除く): 7025635

約数列:

[1, 5, 17, 19, 41, 85, 95, 205, 283, 323, 697, 779, 1415, 1615, 3485, 3895, 4811, 5377, 11603, 13243, 24055, 26885, 58015, 66215, 91409, 197251, 220457, 457045, 986255, 1102285, 3747769, 18738845]

約数ペア:

[(1, 18738845), (5, 3747769), (17, 1102285), (19, 986255), (41, 457045), (85, 220457), (95, 197251), (205, 91409), (283, 66215), (323, 58015), (697, 26885), (779, 24055), (1415, 13243), (1615, 11603), (3485, 5377), (3895, 4811)]