201228800

素因数分解:

$2^9\times 5^2\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:306

約数の個数: 120

約数和(自身を含む): 507408000

約数和(自身を除く): 306179200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 79, 80, 100, 128, 158, 160, 199, 200, 256, 316, 320, 395, 398, 400, 512, 632, 640, 790, 796, 800, 995, 1264, 1280, 1580, 1592, 1600, 1975, 1990, 2528, 2560, 3160, 3184, 3200, 3950, 3980, 4975, 5056, 6320, 6368, 6400, 7900, 7960, 9950, 10112, 12640, 12736, 12800, 15721, 15800, 15920, 19900, 20224, 25280, 25472, 31442, 31600, 31840, 39800, 40448, 50560, 50944, 62884, 63200, 63680, 78605, 79600, 101120, 101888, 125768, 126400, 127360, 157210, 159200, 202240, 251536, 252800, 254720, 314420, 318400, 393025, 503072, 505600, 509440, 628840, 636800, 786050, 1006144, 1011200, 1257680, 1273600, 1572100, 2012288, 2515360, 2547200, 3144200, 4024576, 5030720, 6288400, 8049152, 10061440, 12576800, 20122880, 25153600, 40245760, 50307200, 100614400, 201228800]

約数ペア:

[(1, 201228800), (2, 100614400), (4, 50307200), (5, 40245760), (8, 25153600), (10, 20122880), (16, 12576800), (20, 10061440), (25, 8049152), (32, 6288400), (40, 5030720), (50, 4024576), (64, 3144200), (79, 2547200), (80, 2515360), (100, 2012288), (128, 1572100), (158, 1273600), (160, 1257680), (199, 1011200), (200, 1006144), (256, 786050), (316, 636800), (320, 628840), (395, 509440), (398, 505600), (400, 503072), (512, 393025), (632, 318400), (640, 314420), (790, 254720), (796, 252800), (800, 251536), (995, 202240), (1264, 159200), (1280, 157210), (1580, 127360), (1592, 126400), (1600, 125768), (1975, 101888), (1990, 101120), (2528, 79600), (2560, 78605), (3160, 63680), (3184, 63200), (3200, 62884), (3950, 50944), (3980, 50560), (4975, 40448), (5056, 39800), (6320, 31840), (6368, 31600), (6400, 31442), (7900, 25472), (7960, 25280), (9950, 20224), (10112, 19900), (12640, 15920), (12736, 15800), (12800, 15721)]