28938080

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10639}}^1$

素因数の和:10671

約数の個数: 48

約数和(自身を含む): 72394560

約数和(自身を除く): 43456480

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 68, 80, 85, 136, 160, 170, 272, 340, 544, 680, 1360, 2720, 10639, 21278, 42556, 53195, 85112, 106390, 170224, 180863, 212780, 340448, 361726, 425560, 723452, 851120, 904315, 1446904, 1702240, 1808630, 2893808, 3617260, 5787616, 7234520, 14469040, 28938080]

約数ペア:

[(1, 28938080), (2, 14469040), (4, 7234520), (5, 5787616), (8, 3617260), (10, 2893808), (16, 1808630), (17, 1702240), (20, 1446904), (32, 904315), (34, 851120), (40, 723452), (68, 425560), (80, 361726), (85, 340448), (136, 212780), (160, 180863), (170, 170224), (272, 106390), (340, 85112), (544, 53195), (680, 42556), (1360, 21278), (2720, 10639)]