991036270

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{1123}}^1\times {\mathrm{1801}}^1$

素因数の和:2945

約数の個数: 48

約数和(自身を含む): 2078109648

約数和(自身を除く): 1087073378

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 1123, 1801, 2246, 3602, 5615, 7861, 9005, 11230, 12607, 15722, 18010, 25214, 39305, 55027, 63035, 78610, 88249, 110054, 126070, 176498, 275135, 441245, 550270, 882490, 2022523, 4045046, 10112615, 14157661, 20225230, 28315322, 70788305, 99103627, 141576610, 198207254, 495518135, 991036270]

約数ペア:

[(1, 991036270), (2, 495518135), (5, 198207254), (7, 141576610), (10, 99103627), (14, 70788305), (35, 28315322), (49, 20225230), (70, 14157661), (98, 10112615), (245, 4045046), (490, 2022523), (1123, 882490), (1801, 550270), (2246, 441245), (3602, 275135), (5615, 176498), (7861, 126070), (9005, 110054), (11230, 88249), (12607, 78610), (15722, 63035), (18010, 55027), (25214, 39305)]