81260460

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{347}}^1\times {\mathrm{1301}}^1$

素因数の和:1663

約数の個数: 72

約数和(自身を含む): 247390416

約数和(自身を除く): 166129956

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 347, 694, 1041, 1301, 1388, 1735, 2082, 2602, 3123, 3470, 3903, 4164, 5204, 5205, 6246, 6505, 6940, 7806, 10410, 11709, 12492, 13010, 15612, 15615, 19515, 20820, 23418, 26020, 31230, 39030, 46836, 58545, 62460, 78060, 117090, 234180, 451447, 902894, 1354341, 1805788, 2257235, 2708682, 4063023, 4514470, 5417364, 6771705, 8126046, 9028940, 13543410, 16252092, 20315115, 27086820, 40630230, 81260460]

約数ペア:

[(1, 81260460), (2, 40630230), (3, 27086820), (4, 20315115), (5, 16252092), (6, 13543410), (9, 9028940), (10, 8126046), (12, 6771705), (15, 5417364), (18, 4514470), (20, 4063023), (30, 2708682), (36, 2257235), (45, 1805788), (60, 1354341), (90, 902894), (180, 451447), (347, 234180), (694, 117090), (1041, 78060), (1301, 62460), (1388, 58545), (1735, 46836), (2082, 39030), (2602, 31230), (3123, 26020), (3470, 23418), (3903, 20820), (4164, 19515), (5204, 15615), (5205, 15612), (6246, 13010), (6505, 12492), (6940, 11709), (7806, 10410)]