20438566160

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6904921}}^1$

素因数の和:6904971

約数の個数: 40

約数和(自身を含む): 48803988696

約数和(自身を除く): 28365422536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 370, 592, 740, 1480, 2960, 6904921, 13809842, 27619684, 34524605, 55239368, 69049210, 110478736, 138098420, 255482077, 276196840, 510964154, 552393680, 1021928308, 1277410385, 2043856616, 2554820770, 4087713232, 5109641540, 10219283080, 20438566160]

約数ペア:

[(1, 20438566160), (2, 10219283080), (4, 5109641540), (5, 4087713232), (8, 2554820770), (10, 2043856616), (16, 1277410385), (20, 1021928308), (37, 552393680), (40, 510964154), (74, 276196840), (80, 255482077), (148, 138098420), (185, 110478736), (296, 69049210), (370, 55239368), (592, 34524605), (740, 27619684), (1480, 13809842), (2960, 6904921)]