18123020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{353}}^1$

素因数の和:530

約数の個数: 48

約数和(自身を含む): 40678848

約数和(自身を除く): 22555828

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 151, 170, 302, 340, 353, 604, 706, 755, 1412, 1510, 1765, 2567, 3020, 3530, 5134, 6001, 7060, 10268, 12002, 12835, 24004, 25670, 30005, 51340, 53303, 60010, 106606, 120020, 213212, 266515, 533030, 906151, 1066060, 1812302, 3624604, 4530755, 9061510, 18123020]

約数ペア:

[(1, 18123020), (2, 9061510), (4, 4530755), (5, 3624604), (10, 1812302), (17, 1066060), (20, 906151), (34, 533030), (68, 266515), (85, 213212), (151, 120020), (170, 106606), (302, 60010), (340, 53303), (353, 51340), (604, 30005), (706, 25670), (755, 24004), (1412, 12835), (1510, 12002), (1765, 10268), (2567, 7060), (3020, 6001), (3530, 5134)]