20091281870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{202717}}^1$

素因数の和:202805

約数の個数: 64

約数和(自身を含む): 42561049536

約数和(自身を除く): 22469767666

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 53, 55, 85, 106, 110, 170, 187, 265, 374, 530, 583, 901, 935, 1166, 1802, 1870, 2915, 4505, 5830, 9010, 9911, 19822, 49555, 99110, 202717, 405434, 1013585, 2027170, 2229887, 3446189, 4459774, 6892378, 10744001, 11149435, 17230945, 21488002, 22298870, 34461890, 37908079, 53720005, 75816158, 107440010, 118184011, 182648017, 189540395, 236368022, 365296034, 379080790, 590920055, 913240085, 1181840110, 1826480170, 2009128187, 4018256374, 10045640935, 20091281870]

約数ペア:

[(1, 20091281870), (2, 10045640935), (5, 4018256374), (10, 2009128187), (11, 1826480170), (17, 1181840110), (22, 913240085), (34, 590920055), (53, 379080790), (55, 365296034), (85, 236368022), (106, 189540395), (110, 182648017), (170, 118184011), (187, 107440010), (265, 75816158), (374, 53720005), (530, 37908079), (583, 34461890), (901, 22298870), (935, 21488002), (1166, 17230945), (1802, 11149435), (1870, 10744001), (2915, 6892378), (4505, 4459774), (5830, 3446189), (9010, 2229887), (9911, 2027170), (19822, 1013585), (49555, 405434), (99110, 202717)]