261900720

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{363751}}^1$

素因数の和:363770

約数の個数: 60

約数和(自身を含む): 879552336

約数和(自身を除く): 617651616

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 363751, 727502, 1091253, 1455004, 1818755, 2182506, 2910008, 3273759, 3637510, 4365012, 5456265, 5820016, 6547518, 7275020, 8730024, 10912530, 13095036, 14550040, 16368795, 17460048, 21825060, 26190072, 29100080, 32737590, 43650120, 52380144, 65475180, 87300240, 130950360, 261900720]

約数ペア:

[(1, 261900720), (2, 130950360), (3, 87300240), (4, 65475180), (5, 52380144), (6, 43650120), (8, 32737590), (9, 29100080), (10, 26190072), (12, 21825060), (15, 17460048), (16, 16368795), (18, 14550040), (20, 13095036), (24, 10912530), (30, 8730024), (36, 7275020), (40, 6547518), (45, 5820016), (48, 5456265), (60, 4365012), (72, 3637510), (80, 3273759), (90, 2910008), (120, 2182506), (144, 1818755), (180, 1455004), (240, 1091253), (360, 727502), (720, 363751)]