2018590120

素因数分解:

$2^3\times 5^1\times {\mathrm{1993}}^1\times {\mathrm{25321}}^1$

素因数の和:27325

約数の個数: 32

約数和(自身を含む): 4544286120

約数和(自身を除く): 2525696000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1993, 3986, 7972, 9965, 15944, 19930, 25321, 39860, 50642, 79720, 101284, 126605, 202568, 253210, 506420, 1012840, 50464753, 100929506, 201859012, 252323765, 403718024, 504647530, 1009295060, 2018590120]

約数ペア:

[(1, 2018590120), (2, 1009295060), (4, 504647530), (5, 403718024), (8, 252323765), (10, 201859012), (20, 100929506), (40, 50464753), (1993, 1012840), (3986, 506420), (7972, 253210), (9965, 202568), (15944, 126605), (19930, 101284), (25321, 79720), (39860, 50642)]