15865460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:600

約数の個数: 48

約数和(自身を含む): 36220800

約数和(自身を除く): 20355340

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 139, 260, 278, 439, 556, 695, 878, 1390, 1756, 1807, 2195, 2780, 3614, 4390, 5707, 7228, 8780, 9035, 11414, 18070, 22828, 28535, 36140, 57070, 61021, 114140, 122042, 244084, 305105, 610210, 793273, 1220420, 1586546, 3173092, 3966365, 7932730, 15865460]

約数ペア:

[(1, 15865460), (2, 7932730), (4, 3966365), (5, 3173092), (10, 1586546), (13, 1220420), (20, 793273), (26, 610210), (52, 305105), (65, 244084), (130, 122042), (139, 114140), (260, 61021), (278, 57070), (439, 36140), (556, 28535), (695, 22828), (878, 18070), (1390, 11414), (1756, 9035), (1807, 8780), (2195, 7228), (2780, 5707), (3614, 4390)]