199986640

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{3001}}^1$

素因数の和:3045

約数の個数: 120

約数和(自身を含む): 572889672

約数和(自身を除く): 372903032

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 49, 56, 68, 70, 80, 85, 98, 112, 119, 136, 140, 170, 196, 238, 245, 272, 280, 340, 392, 476, 490, 560, 595, 680, 784, 833, 952, 980, 1190, 1360, 1666, 1904, 1960, 2380, 3001, 3332, 3920, 4165, 4760, 6002, 6664, 8330, 9520, 12004, 13328, 15005, 16660, 21007, 24008, 30010, 33320, 42014, 48016, 51017, 60020, 66640, 84028, 102034, 105035, 120040, 147049, 168056, 204068, 210070, 240080, 255085, 294098, 336112, 357119, 408136, 420140, 510170, 588196, 714238, 735245, 816272, 840280, 1020340, 1176392, 1428476, 1470490, 1680560, 1785595, 2040680, 2352784, 2499833, 2856952, 2940980, 3571190, 4081360, 4999666, 5713904, 5881960, 7142380, 9999332, 11763920, 12499165, 14284760, 19998664, 24998330, 28569520, 39997328, 49996660, 99993320, 199986640]

約数ペア:

[(1, 199986640), (2, 99993320), (4, 49996660), (5, 39997328), (7, 28569520), (8, 24998330), (10, 19998664), (14, 14284760), (16, 12499165), (17, 11763920), (20, 9999332), (28, 7142380), (34, 5881960), (35, 5713904), (40, 4999666), (49, 4081360), (56, 3571190), (68, 2940980), (70, 2856952), (80, 2499833), (85, 2352784), (98, 2040680), (112, 1785595), (119, 1680560), (136, 1470490), (140, 1428476), (170, 1176392), (196, 1020340), (238, 840280), (245, 816272), (272, 735245), (280, 714238), (340, 588196), (392, 510170), (476, 420140), (490, 408136), (560, 357119), (595, 336112), (680, 294098), (784, 255085), (833, 240080), (952, 210070), (980, 204068), (1190, 168056), (1360, 147049), (1666, 120040), (1904, 105035), (1960, 102034), (2380, 84028), (3001, 66640), (3332, 60020), (3920, 51017), (4165, 48016), (4760, 42014), (6002, 33320), (6664, 30010), (8330, 24008), (9520, 21007), (12004, 16660), (13328, 15005)]