18807366980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{140207}}^1$

素因数の和:140588

約数の個数: 48

約数和(自身を含む): 41692250880

約数和(自身を除く): 22884883900

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 353, 380, 706, 1412, 1765, 3530, 6707, 7060, 13414, 26828, 33535, 67070, 134140, 140207, 280414, 560828, 701035, 1402070, 2663933, 2804140, 5327866, 10655732, 13319665, 26639330, 49493071, 53278660, 98986142, 197972284, 247465355, 494930710, 940368349, 989861420, 1880736698, 3761473396, 4701841745, 9403683490, 18807366980]

約数ペア:

[(1, 18807366980), (2, 9403683490), (4, 4701841745), (5, 3761473396), (10, 1880736698), (19, 989861420), (20, 940368349), (38, 494930710), (76, 247465355), (95, 197972284), (190, 98986142), (353, 53278660), (380, 49493071), (706, 26639330), (1412, 13319665), (1765, 10655732), (3530, 5327866), (6707, 2804140), (7060, 2663933), (13414, 1402070), (26828, 701035), (33535, 560828), (67070, 280414), (134140, 140207)]