39964540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{25951}}^1$

素因数の和:25978

約数の個数: 48

約数和(自身を含む): 104638464

約数和(自身を除く): 64673924

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 25951, 51902, 103804, 129755, 181657, 259510, 285461, 363314, 519020, 570922, 726628, 908285, 1141844, 1427305, 1816570, 1998227, 2854610, 3633140, 3996454, 5709220, 7992908, 9991135, 19982270, 39964540]

約数ペア:

[(1, 39964540), (2, 19982270), (4, 9991135), (5, 7992908), (7, 5709220), (10, 3996454), (11, 3633140), (14, 2854610), (20, 1998227), (22, 1816570), (28, 1427305), (35, 1141844), (44, 908285), (55, 726628), (70, 570922), (77, 519020), (110, 363314), (140, 285461), (154, 259510), (220, 181657), (308, 129755), (385, 103804), (770, 51902), (1540, 25951)]