18033440

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2749}}^1$

素因数の和:2805

約数の個数: 48

約数和(自身を含む): 43659000

約数和(自身を除く): 25625560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 80, 82, 160, 164, 205, 328, 410, 656, 820, 1312, 1640, 2749, 3280, 5498, 6560, 10996, 13745, 21992, 27490, 43984, 54980, 87968, 109960, 112709, 219920, 225418, 439840, 450836, 563545, 901672, 1127090, 1803344, 2254180, 3606688, 4508360, 9016720, 18033440]

約数ペア:

[(1, 18033440), (2, 9016720), (4, 4508360), (5, 3606688), (8, 2254180), (10, 1803344), (16, 1127090), (20, 901672), (32, 563545), (40, 450836), (41, 439840), (80, 225418), (82, 219920), (160, 112709), (164, 109960), (205, 87968), (328, 54980), (410, 43984), (656, 27490), (820, 21992), (1312, 13745), (1640, 10996), (2749, 6560), (3280, 5498)]