215173475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{26981}}^1$

素因数の和:27031

約数の個数: 24

約数和(自身を含む): 301119120

約数和(自身を除く): 85945645

約数列:

[1, 5, 11, 25, 29, 55, 145, 275, 319, 725, 1595, 7975, 26981, 134905, 296791, 674525, 782449, 1483955, 3912245, 7419775, 8606939, 19561225, 43034695, 215173475]

約数ペア:

[(1, 215173475), (5, 43034695), (11, 19561225), (25, 8606939), (29, 7419775), (55, 3912245), (145, 1483955), (275, 782449), (319, 674525), (725, 296791), (1595, 134905), (7975, 26981)]