205416720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{285301}}^1$

素因数の和:285320

約数の個数: 60

約数和(自身を含む): 689860236

約数和(自身を除く): 484443516

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 285301, 570602, 855903, 1141204, 1426505, 1711806, 2282408, 2567709, 2853010, 3423612, 4279515, 4564816, 5135418, 5706020, 6847224, 8559030, 10270836, 11412040, 12838545, 13694448, 17118060, 20541672, 22824080, 25677090, 34236120, 41083344, 51354180, 68472240, 102708360, 205416720]

約数ペア:

[(1, 205416720), (2, 102708360), (3, 68472240), (4, 51354180), (5, 41083344), (6, 34236120), (8, 25677090), (9, 22824080), (10, 20541672), (12, 17118060), (15, 13694448), (16, 12838545), (18, 11412040), (20, 10270836), (24, 8559030), (30, 6847224), (36, 5706020), (40, 5135418), (45, 4564816), (48, 4279515), (60, 3423612), (72, 2853010), (80, 2567709), (90, 2282408), (120, 1711806), (144, 1426505), (180, 1141204), (240, 855903), (360, 570602), (720, 285301)]