18021567460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1611947}}^1$

素因数の和:1612012

約数の個数: 48

約数和(自身を含む): 41704318656

約数和(自身を除く): 23682751196

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 1611947, 3223894, 6447788, 8059735, 16119470, 20955311, 32238940, 41910622, 69313721, 83821244, 104776555, 138627442, 209553110, 277254884, 346568605, 419106220, 693137210, 901078373, 1386274420, 1802156746, 3604313492, 4505391865, 9010783730, 18021567460]

約数ペア:

[(1, 18021567460), (2, 9010783730), (4, 4505391865), (5, 3604313492), (10, 1802156746), (13, 1386274420), (20, 901078373), (26, 693137210), (43, 419106220), (52, 346568605), (65, 277254884), (86, 209553110), (130, 138627442), (172, 104776555), (215, 83821244), (260, 69313721), (430, 41910622), (559, 32238940), (860, 20955311), (1118, 16119470), (2236, 8059735), (2795, 6447788), (5590, 3223894), (11180, 1611947)]