69418280

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{2699}}^1$

素因数の和:3353

約数の個数: 32

約数和(自身を含む): 156492000

約数和(自身を除く): 87073720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 2699, 3215, 5144, 5398, 6430, 10796, 12860, 13495, 21592, 25720, 26990, 53980, 107960, 1735457, 3470914, 6941828, 8677285, 13883656, 17354570, 34709140, 69418280]

約数ペア:

[(1, 69418280), (2, 34709140), (4, 17354570), (5, 13883656), (8, 8677285), (10, 6941828), (20, 3470914), (40, 1735457), (643, 107960), (1286, 53980), (2572, 26990), (2699, 25720), (3215, 21592), (5144, 13495), (5398, 12860), (6430, 10796)]