81009090

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6871}}^1$

素因数の和:7015

約数の個数: 48

約数和(自身を含む): 212262336

約数和(自身を除く): 131253246

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 131, 262, 393, 655, 786, 1179, 1310, 1965, 2358, 3930, 5895, 6871, 11790, 13742, 20613, 34355, 41226, 61839, 68710, 103065, 123678, 206130, 309195, 618390, 900101, 1800202, 2700303, 4500505, 5400606, 8100909, 9001010, 13501515, 16201818, 27003030, 40504545, 81009090]

約数ペア:

[(1, 81009090), (2, 40504545), (3, 27003030), (5, 16201818), (6, 13501515), (9, 9001010), (10, 8100909), (15, 5400606), (18, 4500505), (30, 2700303), (45, 1800202), (90, 900101), (131, 618390), (262, 309195), (393, 206130), (655, 123678), (786, 103065), (1179, 68710), (1310, 61839), (1965, 41226), (2358, 34355), (3930, 20613), (5895, 13742), (6871, 11790)]