15398420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{191}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 33868800

約数和(自身を除く): 18470380

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 139, 145, 191, 278, 290, 382, 556, 580, 695, 764, 955, 1390, 1910, 2780, 3820, 4031, 5539, 8062, 11078, 16124, 20155, 22156, 26549, 27695, 40310, 53098, 55390, 80620, 106196, 110780, 132745, 265490, 530980, 769921, 1539842, 3079684, 3849605, 7699210, 15398420]

約数ペア:

[(1, 15398420), (2, 7699210), (4, 3849605), (5, 3079684), (10, 1539842), (20, 769921), (29, 530980), (58, 265490), (116, 132745), (139, 110780), (145, 106196), (191, 80620), (278, 55390), (290, 53098), (382, 40310), (556, 27695), (580, 26549), (695, 22156), (764, 20155), (955, 16124), (1390, 11078), (1910, 8062), (2780, 5539), (3820, 4031)]