203440720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{839}}^1$

素因数の和:1292

約数の個数: 80

約数和(自身を含む): 542465280

約数和(自身を除く): 339024560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 433, 560, 839, 866, 1678, 1732, 2165, 3031, 3356, 3464, 4195, 4330, 5873, 6062, 6712, 6928, 8390, 8660, 11746, 12124, 13424, 15155, 16780, 17320, 23492, 24248, 29365, 30310, 33560, 34640, 46984, 48496, 58730, 60620, 67120, 93968, 117460, 121240, 234920, 242480, 363287, 469840, 726574, 1453148, 1816435, 2543009, 2906296, 3632870, 5086018, 5812592, 7265740, 10172036, 12715045, 14531480, 20344072, 25430090, 29062960, 40688144, 50860180, 101720360, 203440720]

約数ペア:

[(1, 203440720), (2, 101720360), (4, 50860180), (5, 40688144), (7, 29062960), (8, 25430090), (10, 20344072), (14, 14531480), (16, 12715045), (20, 10172036), (28, 7265740), (35, 5812592), (40, 5086018), (56, 3632870), (70, 2906296), (80, 2543009), (112, 1816435), (140, 1453148), (280, 726574), (433, 469840), (560, 363287), (839, 242480), (866, 234920), (1678, 121240), (1732, 117460), (2165, 93968), (3031, 67120), (3356, 60620), (3464, 58730), (4195, 48496), (4330, 46984), (5873, 34640), (6062, 33560), (6712, 30310), (6928, 29365), (8390, 24248), (8660, 23492), (11746, 17320), (12124, 16780), (13424, 15155)]