408058640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20161}}^1$

素因数の和:20208

約数の個数: 80

約数和(自身を含む): 1080038016

約数和(自身を除く): 671979376

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 23, 40, 44, 46, 55, 80, 88, 92, 110, 115, 176, 184, 220, 230, 253, 368, 440, 460, 506, 880, 920, 1012, 1265, 1840, 2024, 2530, 4048, 5060, 10120, 20161, 20240, 40322, 80644, 100805, 161288, 201610, 221771, 322576, 403220, 443542, 463703, 806440, 887084, 927406, 1108855, 1612880, 1774168, 1854812, 2217710, 2318515, 3548336, 3709624, 4435420, 4637030, 5100733, 7419248, 8870840, 9274060, 10201466, 17741680, 18548120, 20402932, 25503665, 37096240, 40805864, 51007330, 81611728, 102014660, 204029320, 408058640]

約数ペア:

[(1, 408058640), (2, 204029320), (4, 102014660), (5, 81611728), (8, 51007330), (10, 40805864), (11, 37096240), (16, 25503665), (20, 20402932), (22, 18548120), (23, 17741680), (40, 10201466), (44, 9274060), (46, 8870840), (55, 7419248), (80, 5100733), (88, 4637030), (92, 4435420), (110, 3709624), (115, 3548336), (176, 2318515), (184, 2217710), (220, 1854812), (230, 1774168), (253, 1612880), (368, 1108855), (440, 927406), (460, 887084), (506, 806440), (880, 463703), (920, 443542), (1012, 403220), (1265, 322576), (1840, 221771), (2024, 201610), (2530, 161288), (4048, 100805), (5060, 80644), (10120, 40322), (20161, 20240)]