261159840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181361}}^1$

素因数の和:181382

約数の個数: 72

約数和(自身を含む): 891212868

約数和(自身を除く): 630053028

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 181361, 362722, 544083, 725444, 906805, 1088166, 1450888, 1632249, 1813610, 2176332, 2720415, 2901776, 3264498, 3627220, 4352664, 5440830, 5803552, 6528996, 7254440, 8161245, 8705328, 10881660, 13057992, 14508880, 16322490, 17410656, 21763320, 26115984, 29017760, 32644980, 43526640, 52231968, 65289960, 87053280, 130579920, 261159840]

約数ペア:

[(1, 261159840), (2, 130579920), (3, 87053280), (4, 65289960), (5, 52231968), (6, 43526640), (8, 32644980), (9, 29017760), (10, 26115984), (12, 21763320), (15, 17410656), (16, 16322490), (18, 14508880), (20, 13057992), (24, 10881660), (30, 8705328), (32, 8161245), (36, 7254440), (40, 6528996), (45, 5803552), (48, 5440830), (60, 4352664), (72, 3627220), (80, 3264498), (90, 2901776), (96, 2720415), (120, 2176332), (144, 1813610), (160, 1632249), (180, 1450888), (240, 1088166), (288, 906805), (360, 725444), (480, 544083), (720, 362722), (1440, 181361)]