653240620

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1\times {\mathrm{1381}}^1$

素因数の和:1810

約数の個数: 48

約数和(自身を含む): 1397235168

約数和(自身を除く): 743994548

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 353, 670, 706, 1340, 1381, 1412, 1765, 2762, 3530, 5524, 6905, 7060, 13810, 23651, 27620, 47302, 92527, 94604, 118255, 185054, 236510, 370108, 462635, 473020, 487493, 925270, 974986, 1850540, 1949972, 2437465, 4874930, 9749860, 32662031, 65324062, 130648124, 163310155, 326620310, 653240620]

約数ペア:

[(1, 653240620), (2, 326620310), (4, 163310155), (5, 130648124), (10, 65324062), (20, 32662031), (67, 9749860), (134, 4874930), (268, 2437465), (335, 1949972), (353, 1850540), (670, 974986), (706, 925270), (1340, 487493), (1381, 473020), (1412, 462635), (1765, 370108), (2762, 236510), (3530, 185054), (5524, 118255), (6905, 94604), (7060, 92527), (13810, 47302), (23651, 27620)]