81400140

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{1861}}^1$

素因数の和:1891

約数の個数: 96

約数和(自身を含む): 256509120

約数和(自身を除く): 175108980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 243, 270, 324, 405, 486, 540, 729, 810, 972, 1215, 1458, 1620, 1861, 2187, 2430, 2916, 3645, 3722, 4374, 4860, 5583, 7290, 7444, 8748, 9305, 10935, 11166, 14580, 16749, 18610, 21870, 22332, 27915, 33498, 37220, 43740, 50247, 55830, 66996, 83745, 100494, 111660, 150741, 167490, 200988, 251235, 301482, 334980, 452223, 502470, 602964, 753705, 904446, 1004940, 1356669, 1507410, 1808892, 2261115, 2713338, 3014820, 4070007, 4522230, 5426676, 6783345, 8140014, 9044460, 13566690, 16280028, 20350035, 27133380, 40700070, 81400140]

約数ペア:

[(1, 81400140), (2, 40700070), (3, 27133380), (4, 20350035), (5, 16280028), (6, 13566690), (9, 9044460), (10, 8140014), (12, 6783345), (15, 5426676), (18, 4522230), (20, 4070007), (27, 3014820), (30, 2713338), (36, 2261115), (45, 1808892), (54, 1507410), (60, 1356669), (81, 1004940), (90, 904446), (108, 753705), (135, 602964), (162, 502470), (180, 452223), (243, 334980), (270, 301482), (324, 251235), (405, 200988), (486, 167490), (540, 150741), (729, 111660), (810, 100494), (972, 83745), (1215, 66996), (1458, 55830), (1620, 50247), (1861, 43740), (2187, 37220), (2430, 33498), (2916, 27915), (3645, 22332), (3722, 21870), (4374, 18610), (4860, 16749), (5583, 14580), (7290, 11166), (7444, 10935), (8748, 9305)]