261810720

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{181813}}^1$

素因数の和:181834

約数の個数: 72

約数和(自身を含む): 893433996

約数和(自身を除く): 631623276

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, 181813, 363626, 545439, 727252, 909065, 1090878, 1454504, 1636317, 1818130, 2181756, 2727195, 2909008, 3272634, 3636260, 4363512, 5454390, 5818016, 6545268, 7272520, 8181585, 8727024, 10908780, 13090536, 14545040, 16363170, 17454048, 21817560, 26181072, 29090080, 32726340, 43635120, 52362144, 65452680, 87270240, 130905360, 261810720]

約数ペア:

[(1, 261810720), (2, 130905360), (3, 87270240), (4, 65452680), (5, 52362144), (6, 43635120), (8, 32726340), (9, 29090080), (10, 26181072), (12, 21817560), (15, 17454048), (16, 16363170), (18, 14545040), (20, 13090536), (24, 10908780), (30, 8727024), (32, 8181585), (36, 7272520), (40, 6545268), (45, 5818016), (48, 5454390), (60, 4363512), (72, 3636260), (80, 3272634), (90, 2909008), (96, 2727195), (120, 2181756), (144, 1818130), (160, 1636317), (180, 1454504), (240, 1090878), (288, 909065), (360, 727252), (480, 545439), (720, 363626), (1440, 181813)]