1781668

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1$

素因数の和:244

約数の個数: 48

約数和(自身を含む): 3991680

約数和(自身を除く): 2210012

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 197, 238, 266, 323, 394, 476, 532, 646, 788, 1292, 1379, 2261, 2758, 3349, 3743, 4522, 5516, 6698, 7486, 9044, 13396, 14972, 23443, 26201, 46886, 52402, 63631, 93772, 104804, 127262, 254524, 445417, 890834, 1781668]

約数ペア:

[(1, 1781668), (2, 890834), (4, 445417), (7, 254524), (14, 127262), (17, 104804), (19, 93772), (28, 63631), (34, 52402), (38, 46886), (68, 26201), (76, 23443), (119, 14972), (133, 13396), (197, 9044), (238, 7486), (266, 6698), (323, 5516), (394, 4522), (476, 3743), (532, 3349), (646, 2758), (788, 2261), (1292, 1379)]