19420700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{14939}}^1$

素因数の和:14966

約数の個数: 36

約数和(自身を含む): 45387720

約数和(自身を除く): 25967020

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 14939, 29878, 59756, 74695, 149390, 194207, 298780, 373475, 388414, 746950, 776828, 971035, 1493900, 1942070, 3884140, 4855175, 9710350, 19420700]

約数ペア:

[(1, 19420700), (2, 9710350), (4, 4855175), (5, 3884140), (10, 1942070), (13, 1493900), (20, 971035), (25, 776828), (26, 746950), (50, 388414), (52, 373475), (65, 298780), (100, 194207), (130, 149390), (260, 74695), (325, 59756), (650, 29878), (1300, 14939)]