20809710

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1159

約数の個数: 80

約数和(自身を含む): 58440096

約数和(自身を除く): 37630386

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 27, 30, 45, 46, 54, 69, 81, 90, 115, 135, 138, 162, 207, 230, 270, 345, 405, 414, 621, 690, 810, 1035, 1117, 1242, 1863, 2070, 2234, 3105, 3351, 3726, 5585, 6210, 6702, 9315, 10053, 11170, 16755, 18630, 20106, 25691, 30159, 33510, 50265, 51382, 60318, 77073, 90477, 100530, 128455, 150795, 154146, 180954, 231219, 256910, 301590, 385365, 452385, 462438, 693657, 770730, 904770, 1156095, 1387314, 2080971, 2312190, 3468285, 4161942, 6936570, 10404855, 20809710]

約数ペア:

[(1, 20809710), (2, 10404855), (3, 6936570), (5, 4161942), (6, 3468285), (9, 2312190), (10, 2080971), (15, 1387314), (18, 1156095), (23, 904770), (27, 770730), (30, 693657), (45, 462438), (46, 452385), (54, 385365), (69, 301590), (81, 256910), (90, 231219), (115, 180954), (135, 154146), (138, 150795), (162, 128455), (207, 100530), (230, 90477), (270, 77073), (345, 60318), (405, 51382), (414, 50265), (621, 33510), (690, 30159), (810, 25691), (1035, 20106), (1117, 18630), (1242, 16755), (1863, 11170), (2070, 10053), (2234, 9315), (3105, 6702), (3351, 6210), (3726, 5585)]