1909112975

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{21101}}^1$

素因数の和:21176

約数の個数: 48

約数和(自身を含む): 3014378496

約数和(自身を除く): 1105265521

約数列:

[1, 5, 7, 11, 25, 35, 47, 55, 77, 175, 235, 275, 329, 385, 517, 1175, 1645, 1925, 2585, 3619, 8225, 12925, 18095, 21101, 90475, 105505, 147707, 232111, 527525, 738535, 991747, 1160555, 1624777, 3692675, 4958735, 5802775, 6942229, 8123885, 10909217, 24793675, 34711145, 40619425, 54546085, 76364519, 173555725, 272730425, 381822595, 1909112975]

約数ペア:

[(1, 1909112975), (5, 381822595), (7, 272730425), (11, 173555725), (25, 76364519), (35, 54546085), (47, 40619425), (55, 34711145), (77, 24793675), (175, 10909217), (235, 8123885), (275, 6942229), (329, 5802775), (385, 4958735), (517, 3692675), (1175, 1624777), (1645, 1160555), (1925, 991747), (2585, 738535), (3619, 527525), (8225, 232111), (12925, 147707), (18095, 105505), (21101, 90475)]