18038980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1283}}^1$

素因数の和:1348

約数の個数: 48

約数和(自身を含む): 40985280

約数和(自身を除く): 22946300

約数列:

[1, 2, 4, 5, 10, 19, 20, 37, 38, 74, 76, 95, 148, 185, 190, 370, 380, 703, 740, 1283, 1406, 2566, 2812, 3515, 5132, 6415, 7030, 12830, 14060, 24377, 25660, 47471, 48754, 94942, 97508, 121885, 189884, 237355, 243770, 474710, 487540, 901949, 949420, 1803898, 3607796, 4509745, 9019490, 18038980]

約数ペア:

[(1, 18038980), (2, 9019490), (4, 4509745), (5, 3607796), (10, 1803898), (19, 949420), (20, 901949), (37, 487540), (38, 474710), (74, 243770), (76, 237355), (95, 189884), (148, 121885), (185, 97508), (190, 94942), (370, 48754), (380, 47471), (703, 25660), (740, 24377), (1283, 14060), (1406, 12830), (2566, 7030), (2812, 6415), (3515, 5132)]