87409420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{971}}^1$

素因数の和:1630

約数の個数: 48

約数和(自身を含む): 210325248

約数和(自身を除く): 122915828

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 643, 971, 1286, 1942, 2572, 3215, 3884, 4501, 4855, 6430, 6797, 9002, 9710, 12860, 13594, 18004, 19420, 22505, 27188, 33985, 45010, 67970, 90020, 135940, 624353, 1248706, 2497412, 3121765, 4370471, 6243530, 8740942, 12487060, 17481884, 21852355, 43704710, 87409420]

約数ペア:

[(1, 87409420), (2, 43704710), (4, 21852355), (5, 17481884), (7, 12487060), (10, 8740942), (14, 6243530), (20, 4370471), (28, 3121765), (35, 2497412), (70, 1248706), (140, 624353), (643, 135940), (971, 90020), (1286, 67970), (1942, 45010), (2572, 33985), (3215, 27188), (3884, 22505), (4501, 19420), (4855, 18004), (6430, 13594), (6797, 12860), (9002, 9710)]