427746520

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{199}}^1$

素因数の和:365

約数の個数: 128

約数和(自身を含む): 1069200000

約数和(自身を除く): 641453480

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 29, 34, 40, 58, 68, 85, 109, 116, 136, 145, 170, 199, 218, 232, 290, 340, 398, 436, 493, 545, 580, 680, 796, 872, 986, 995, 1090, 1160, 1592, 1853, 1972, 1990, 2180, 2465, 3161, 3383, 3706, 3944, 3980, 4360, 4930, 5771, 6322, 6766, 7412, 7960, 9265, 9860, 11542, 12644, 13532, 14824, 15805, 16915, 18530, 19720, 21691, 23084, 25288, 27064, 28855, 31610, 33830, 37060, 43382, 46168, 53737, 57710, 63220, 67660, 74120, 86764, 98107, 107474, 108455, 115420, 126440, 135320, 173528, 196214, 214948, 216910, 230840, 268685, 368747, 392428, 429896, 433820, 490535, 537370, 629039, 737494, 784856, 867640, 981070, 1074740, 1258078, 1474988, 1843735, 1962140, 2149480, 2516156, 2949976, 3145195, 3687470, 3924280, 5032312, 6290390, 7374940, 10693663, 12580780, 14749880, 21387326, 25161560, 42774652, 53468315, 85549304, 106936630, 213873260, 427746520]

約数ペア:

[(1, 427746520), (2, 213873260), (4, 106936630), (5, 85549304), (8, 53468315), (10, 42774652), (17, 25161560), (20, 21387326), (29, 14749880), (34, 12580780), (40, 10693663), (58, 7374940), (68, 6290390), (85, 5032312), (109, 3924280), (116, 3687470), (136, 3145195), (145, 2949976), (170, 2516156), (199, 2149480), (218, 1962140), (232, 1843735), (290, 1474988), (340, 1258078), (398, 1074740), (436, 981070), (493, 867640), (545, 784856), (580, 737494), (680, 629039), (796, 537370), (872, 490535), (986, 433820), (995, 429896), (1090, 392428), (1160, 368747), (1592, 268685), (1853, 230840), (1972, 216910), (1990, 214948), (2180, 196214), (2465, 173528), (3161, 135320), (3383, 126440), (3706, 115420), (3944, 108455), (3980, 107474), (4360, 98107), (4930, 86764), (5771, 74120), (6322, 67660), (6766, 63220), (7412, 57710), (7960, 53737), (9265, 46168), (9860, 43382), (11542, 37060), (12644, 33830), (13532, 31610), (14824, 28855), (15805, 27064), (16915, 25288), (18530, 23084), (19720, 21691)]