28740640

素因数分解:

$2^5\times 5^1\times {\mathrm{263}}^1\times {\mathrm{683}}^1$

素因数の和:961

約数の個数: 48

約数和(自身を含む): 68257728

約数和(自身を除く): 39517088

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 263, 526, 683, 1052, 1315, 1366, 2104, 2630, 2732, 3415, 4208, 5260, 5464, 6830, 8416, 10520, 10928, 13660, 21040, 21856, 27320, 42080, 54640, 109280, 179629, 359258, 718516, 898145, 1437032, 1796290, 2874064, 3592580, 5748128, 7185160, 14370320, 28740640]

約数ペア:

[(1, 28740640), (2, 14370320), (4, 7185160), (5, 5748128), (8, 3592580), (10, 2874064), (16, 1796290), (20, 1437032), (32, 898145), (40, 718516), (80, 359258), (160, 179629), (263, 109280), (526, 54640), (683, 42080), (1052, 27320), (1315, 21856), (1366, 21040), (2104, 13660), (2630, 10928), (2732, 10520), (3415, 8416), (4208, 6830), (5260, 5464)]