209995740

素因数分解:

$2^2\times 3^7\times 5^1\times {\mathrm{4801}}^1$

素因数の和:4831

約数の個数: 96

約数和(自身を含む): 661523520

約数和(自身を除く): 451527780

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, 2187, 2430, 2916, 3645, 4374, 4801, 4860, 7290, 8748, 9602, 10935, 14403, 14580, 19204, 21870, 24005, 28806, 43209, 43740, 48010, 57612, 72015, 86418, 96020, 129627, 144030, 172836, 216045, 259254, 288060, 388881, 432090, 518508, 648135, 777762, 864180, 1166643, 1296270, 1555524, 1944405, 2333286, 2592540, 3499929, 3888810, 4666572, 5833215, 6999858, 7777620, 10499787, 11666430, 13999716, 17499645, 20999574, 23332860, 34999290, 41999148, 52498935, 69998580, 104997870, 209995740]

約数ペア:

[(1, 209995740), (2, 104997870), (3, 69998580), (4, 52498935), (5, 41999148), (6, 34999290), (9, 23332860), (10, 20999574), (12, 17499645), (15, 13999716), (18, 11666430), (20, 10499787), (27, 7777620), (30, 6999858), (36, 5833215), (45, 4666572), (54, 3888810), (60, 3499929), (81, 2592540), (90, 2333286), (108, 1944405), (135, 1555524), (162, 1296270), (180, 1166643), (243, 864180), (270, 777762), (324, 648135), (405, 518508), (486, 432090), (540, 388881), (729, 288060), (810, 259254), (972, 216045), (1215, 172836), (1458, 144030), (1620, 129627), (2187, 96020), (2430, 86418), (2916, 72015), (3645, 57612), (4374, 48010), (4801, 43740), (4860, 43209), (7290, 28806), (8748, 24005), (9602, 21870), (10935, 19204), (14403, 14580)]