281895840

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{195761}}^1$

素因数の和:195782

約数の個数: 72

約数和(自身を含む): 961974468

約数和(自身を除く): 680078628

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, 195761, 391522, 587283, 783044, 978805, 1174566, 1566088, 1761849, 1957610, 2349132, 2936415, 3132176, 3523698, 3915220, 4698264, 5872830, 6264352, 7047396, 7830440, 8809245, 9396528, 11745660, 14094792, 15660880, 17618490, 18793056, 23491320, 28189584, 31321760, 35236980, 46982640, 56379168, 70473960, 93965280, 140947920, 281895840]

約数ペア:

[(1, 281895840), (2, 140947920), (3, 93965280), (4, 70473960), (5, 56379168), (6, 46982640), (8, 35236980), (9, 31321760), (10, 28189584), (12, 23491320), (15, 18793056), (16, 17618490), (18, 15660880), (20, 14094792), (24, 11745660), (30, 9396528), (32, 8809245), (36, 7830440), (40, 7047396), (45, 6264352), (48, 5872830), (60, 4698264), (72, 3915220), (80, 3523698), (90, 3132176), (96, 2936415), (120, 2349132), (144, 1957610), (160, 1761849), (180, 1566088), (240, 1174566), (288, 978805), (360, 783044), (480, 587283), (720, 391522), (1440, 195761)]