19506650

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 39231864

約数和(自身を除く): 19725214

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 53, 85, 106, 170, 265, 425, 433, 530, 850, 866, 901, 1325, 1802, 2165, 2650, 4330, 4505, 7361, 9010, 10825, 14722, 21650, 22525, 22949, 36805, 45050, 45898, 73610, 114745, 184025, 229490, 368050, 390133, 573725, 780266, 1147450, 1950665, 3901330, 9753325, 19506650]

約数ペア:

[(1, 19506650), (2, 9753325), (5, 3901330), (10, 1950665), (17, 1147450), (25, 780266), (34, 573725), (50, 390133), (53, 368050), (85, 229490), (106, 184025), (170, 114745), (265, 73610), (425, 45898), (433, 45050), (530, 36805), (850, 22949), (866, 22525), (901, 21650), (1325, 14722), (1802, 10825), (2165, 9010), (2650, 7361), (4330, 4505)]