20300850

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:444

約数の個数: 72

約数和(自身を含む): 55057860

約数和(自身を除く): 34757010

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 197, 225, 229, 394, 450, 458, 591, 687, 985, 1145, 1182, 1374, 1773, 1970, 2061, 2290, 2955, 3435, 3546, 4122, 4925, 5725, 5910, 6870, 8865, 9850, 10305, 11450, 14775, 17175, 17730, 20610, 29550, 34350, 44325, 45113, 51525, 88650, 90226, 103050, 135339, 225565, 270678, 406017, 451130, 676695, 812034, 1127825, 1353390, 2030085, 2255650, 3383475, 4060170, 6766950, 10150425, 20300850]

約数ペア:

[(1, 20300850), (2, 10150425), (3, 6766950), (5, 4060170), (6, 3383475), (9, 2255650), (10, 2030085), (15, 1353390), (18, 1127825), (25, 812034), (30, 676695), (45, 451130), (50, 406017), (75, 270678), (90, 225565), (150, 135339), (197, 103050), (225, 90226), (229, 88650), (394, 51525), (450, 45113), (458, 44325), (591, 34350), (687, 29550), (985, 20610), (1145, 17730), (1182, 17175), (1374, 14775), (1773, 11450), (1970, 10305), (2061, 9850), (2290, 8865), (2955, 6870), (3435, 5910), (3546, 5725), (4122, 4925)]