28078240

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{1553}}^1$

素因数の和:1681

約数の個数: 48

約数和(自身を含む): 66964968

約数和(自身を除く): 38886728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 452, 565, 904, 1130, 1553, 1808, 2260, 3106, 3616, 4520, 6212, 7765, 9040, 12424, 15530, 18080, 24848, 31060, 49696, 62120, 124240, 175489, 248480, 350978, 701956, 877445, 1403912, 1754890, 2807824, 3509780, 5615648, 7019560, 14039120, 28078240]

約数ペア:

[(1, 28078240), (2, 14039120), (4, 7019560), (5, 5615648), (8, 3509780), (10, 2807824), (16, 1754890), (20, 1403912), (32, 877445), (40, 701956), (80, 350978), (113, 248480), (160, 175489), (226, 124240), (452, 62120), (565, 49696), (904, 31060), (1130, 24848), (1553, 18080), (1808, 15530), (2260, 12424), (3106, 9040), (3616, 7765), (4520, 6212)]