428108340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{648649}}^1$

素因数の和:648672

約数の個数: 48

約数和(自身を含む): 1307678400

約数和(自身を除く): 879570060

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 660, 648649, 1297298, 1945947, 2594596, 3243245, 3891894, 6486490, 7135139, 7783788, 9729735, 12972980, 14270278, 19459470, 21405417, 28540556, 35675695, 38918940, 42810834, 71351390, 85621668, 107027085, 142702780, 214054170, 428108340]

約数ペア:

[(1, 428108340), (2, 214054170), (3, 142702780), (4, 107027085), (5, 85621668), (6, 71351390), (10, 42810834), (11, 38918940), (12, 35675695), (15, 28540556), (20, 21405417), (22, 19459470), (30, 14270278), (33, 12972980), (44, 9729735), (55, 7783788), (60, 7135139), (66, 6486490), (110, 3891894), (132, 3243245), (165, 2594596), (220, 1945947), (330, 1297298), (660, 648649)]