189970945

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 243855360

約数和(自身を除く): 53884415

約数列:

[1, 5, 31, 47, 89, 155, 235, 293, 445, 1457, 1465, 2759, 4183, 7285, 9083, 13771, 13795, 20915, 26077, 45415, 68855, 129673, 130385, 426901, 648365, 808387, 1225619, 2134505, 4041935, 6128095, 37994189, 189970945]

約数ペア:

[(1, 189970945), (5, 37994189), (31, 6128095), (47, 4041935), (89, 2134505), (155, 1225619), (235, 808387), (293, 648365), (445, 426901), (1457, 130385), (1465, 129673), (2759, 68855), (4183, 45415), (7285, 26077), (9083, 20915), (13771, 13795)]