153860

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{157}}^1$

素因数の和:180

約数の個数: 36

約数和(自身を含む): 378252

約数和(自身を除く): 224392

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 157, 196, 245, 314, 490, 628, 785, 980, 1099, 1570, 2198, 3140, 4396, 5495, 7693, 10990, 15386, 21980, 30772, 38465, 76930, 153860]

約数ペア:

[(1, 153860), (2, 76930), (4, 38465), (5, 30772), (7, 21980), (10, 15386), (14, 10990), (20, 7693), (28, 5495), (35, 4396), (49, 3140), (70, 2198), (98, 1570), (140, 1099), (157, 980), (196, 785), (245, 628), (314, 490)]