398978440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{1061}}^1$

素因数の和:1175

約数の個数: 128

約数和(自身を含む): 1101081600

約数和(自身を除く): 702103160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 68, 70, 79, 85, 119, 136, 140, 158, 170, 238, 280, 316, 340, 395, 476, 553, 595, 632, 680, 790, 952, 1061, 1106, 1190, 1343, 1580, 2122, 2212, 2380, 2686, 2765, 3160, 4244, 4424, 4760, 5305, 5372, 5530, 6715, 7427, 8488, 9401, 10610, 10744, 11060, 13430, 14854, 18037, 18802, 21220, 22120, 26860, 29708, 36074, 37135, 37604, 42440, 47005, 53720, 59416, 72148, 74270, 75208, 83819, 90185, 94010, 126259, 144296, 148540, 167638, 180370, 188020, 252518, 297080, 335276, 360740, 376040, 419095, 505036, 586733, 631295, 670552, 721480, 838190, 1010072, 1173466, 1262590, 1424923, 1676380, 2346932, 2525180, 2849846, 2933665, 3352760, 4693864, 5050360, 5699692, 5867330, 7124615, 9974461, 11399384, 11734660, 14249230, 19948922, 23469320, 28498460, 39897844, 49872305, 56996920, 79795688, 99744610, 199489220, 398978440]

約数ペア:

[(1, 398978440), (2, 199489220), (4, 99744610), (5, 79795688), (7, 56996920), (8, 49872305), (10, 39897844), (14, 28498460), (17, 23469320), (20, 19948922), (28, 14249230), (34, 11734660), (35, 11399384), (40, 9974461), (56, 7124615), (68, 5867330), (70, 5699692), (79, 5050360), (85, 4693864), (119, 3352760), (136, 2933665), (140, 2849846), (158, 2525180), (170, 2346932), (238, 1676380), (280, 1424923), (316, 1262590), (340, 1173466), (395, 1010072), (476, 838190), (553, 721480), (595, 670552), (632, 631295), (680, 586733), (790, 505036), (952, 419095), (1061, 376040), (1106, 360740), (1190, 335276), (1343, 297080), (1580, 252518), (2122, 188020), (2212, 180370), (2380, 167638), (2686, 148540), (2765, 144296), (3160, 126259), (4244, 94010), (4424, 90185), (4760, 83819), (5305, 75208), (5372, 74270), (5530, 72148), (6715, 59416), (7427, 53720), (8488, 47005), (9401, 42440), (10610, 37604), (10744, 37135), (11060, 36074), (13430, 29708), (14854, 26860), (18037, 22120), (18802, 21220)]