802791110

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1\times {\mathrm{661}}^1$

素因数の和:921

約数の個数: 64

約数和(自身を含む): 1613521728

約数和(自身を除く): 810730618

約数列:

[1, 2, 5, 10, 11, 22, 55, 61, 110, 122, 181, 305, 362, 610, 661, 671, 905, 1322, 1342, 1810, 1991, 3305, 3355, 3982, 6610, 6710, 7271, 9955, 11041, 14542, 19910, 22082, 36355, 40321, 55205, 72710, 80642, 110410, 119641, 121451, 201605, 239282, 242902, 403210, 443531, 598205, 607255, 887062, 1196410, 1214510, 1316051, 2217655, 2632102, 4435310, 6580255, 7298101, 13160510, 14596202, 36490505, 72981010, 80279111, 160558222, 401395555, 802791110]

約数ペア:

[(1, 802791110), (2, 401395555), (5, 160558222), (10, 80279111), (11, 72981010), (22, 36490505), (55, 14596202), (61, 13160510), (110, 7298101), (122, 6580255), (181, 4435310), (305, 2632102), (362, 2217655), (610, 1316051), (661, 1214510), (671, 1196410), (905, 887062), (1322, 607255), (1342, 598205), (1810, 443531), (1991, 403210), (3305, 242902), (3355, 239282), (3982, 201605), (6610, 121451), (6710, 119641), (7271, 110410), (9955, 80642), (11041, 72710), (14542, 55205), (19910, 40321), (22082, 36355)]