20697570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{1523}}^1$

素因数の和:1687

約数の個数: 48

約数和(自身を含む): 54205632

約数和(自身を除く): 33508062

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 151, 302, 453, 755, 906, 1359, 1510, 1523, 2265, 2718, 3046, 4530, 4569, 6795, 7615, 9138, 13590, 13707, 15230, 22845, 27414, 45690, 68535, 137070, 229973, 459946, 689919, 1149865, 1379838, 2069757, 2299730, 3449595, 4139514, 6899190, 10348785, 20697570]

約数ペア:

[(1, 20697570), (2, 10348785), (3, 6899190), (5, 4139514), (6, 3449595), (9, 2299730), (10, 2069757), (15, 1379838), (18, 1149865), (30, 689919), (45, 459946), (90, 229973), (151, 137070), (302, 68535), (453, 45690), (755, 27414), (906, 22845), (1359, 15230), (1510, 13707), (1523, 13590), (2265, 9138), (2718, 7615), (3046, 6795), (4530, 4569)]