19609520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{97}}^1$

素因数の和:155

約数の個数: 120

約数和(自身を含む): 55558944

約数和(自身を除く): 35949424

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 35, 38, 40, 56, 70, 76, 80, 95, 97, 112, 133, 140, 152, 190, 194, 266, 280, 304, 361, 380, 388, 485, 532, 560, 665, 679, 722, 760, 776, 970, 1064, 1330, 1358, 1444, 1520, 1552, 1805, 1843, 1940, 2128, 2527, 2660, 2716, 2888, 3395, 3610, 3686, 3880, 5054, 5320, 5432, 5776, 6790, 7220, 7372, 7760, 9215, 10108, 10640, 10864, 12635, 12901, 13580, 14440, 14744, 18430, 20216, 25270, 25802, 27160, 28880, 29488, 35017, 36860, 40432, 50540, 51604, 54320, 64505, 70034, 73720, 101080, 103208, 129010, 140068, 147440, 175085, 202160, 206416, 245119, 258020, 280136, 350170, 490238, 516040, 560272, 700340, 980476, 1032080, 1225595, 1400680, 1960952, 2451190, 2801360, 3921904, 4902380, 9804760, 19609520]

約数ペア:

[(1, 19609520), (2, 9804760), (4, 4902380), (5, 3921904), (7, 2801360), (8, 2451190), (10, 1960952), (14, 1400680), (16, 1225595), (19, 1032080), (20, 980476), (28, 700340), (35, 560272), (38, 516040), (40, 490238), (56, 350170), (70, 280136), (76, 258020), (80, 245119), (95, 206416), (97, 202160), (112, 175085), (133, 147440), (140, 140068), (152, 129010), (190, 103208), (194, 101080), (266, 73720), (280, 70034), (304, 64505), (361, 54320), (380, 51604), (388, 50540), (485, 40432), (532, 36860), (560, 35017), (665, 29488), (679, 28880), (722, 27160), (760, 25802), (776, 25270), (970, 20216), (1064, 18430), (1330, 14744), (1358, 14440), (1444, 13580), (1520, 12901), (1552, 12635), (1805, 10864), (1843, 10640), (1940, 10108), (2128, 9215), (2527, 7760), (2660, 7372), (2716, 7220), (2888, 6790), (3395, 5776), (3610, 5432), (3686, 5320), (3880, 5054)]