19568395

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 30583008

約数和(自身を除く): 11014613

約数列:

[1, 5, 7, 11, 35, 49, 53, 55, 77, 137, 245, 265, 371, 385, 539, 583, 685, 959, 1507, 1855, 2597, 2695, 2915, 4081, 4795, 6713, 7261, 7535, 10549, 12985, 20405, 28567, 33565, 36305, 50827, 52745, 73843, 79871, 142835, 254135, 355789, 369215, 399355, 559097, 1778945, 2795485, 3913679, 19568395]

約数ペア:

[(1, 19568395), (5, 3913679), (7, 2795485), (11, 1778945), (35, 559097), (49, 399355), (53, 369215), (55, 355789), (77, 254135), (137, 142835), (245, 79871), (265, 73843), (371, 52745), (385, 50827), (539, 36305), (583, 33565), (685, 28567), (959, 20405), (1507, 12985), (1855, 10549), (2597, 7535), (2695, 7261), (2915, 6713), (4081, 4795)]