18003680

素因数分解:

$2^5\times 5^1\times {\mathrm{17}}^1\times {\mathrm{6619}}^1$

素因数の和:6651

約数の個数: 48

約数和(自身を含む): 45042480

約数和(自身を除く): 27038800

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, 6619, 13238, 26476, 33095, 52952, 66190, 105904, 112523, 132380, 211808, 225046, 264760, 450092, 529520, 562615, 900184, 1059040, 1125230, 1800368, 2250460, 3600736, 4500920, 9001840, 18003680]

約数ペア:

[(1, 18003680), (2, 9001840), (4, 4500920), (5, 3600736), (8, 2250460), (10, 1800368), (16, 1125230), (17, 1059040), (20, 900184), (32, 562615), (34, 529520), (40, 450092), (68, 264760), (80, 225046), (85, 211808), (136, 132380), (160, 112523), (170, 105904), (272, 66190), (340, 52952), (544, 33095), (680, 26476), (1360, 13238), (2720, 6619)]