13213340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{97}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 72

約数和(自身を含む): 32845680

約数和(自身を除く): 19632340

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 97, 98, 139, 140, 194, 196, 245, 278, 388, 485, 490, 556, 679, 695, 970, 973, 980, 1358, 1390, 1940, 1946, 2716, 2780, 3395, 3892, 4753, 4865, 6790, 6811, 9506, 9730, 13483, 13580, 13622, 19012, 19460, 23765, 26966, 27244, 34055, 47530, 53932, 67415, 68110, 94381, 95060, 134830, 136220, 188762, 269660, 377524, 471905, 660667, 943810, 1321334, 1887620, 2642668, 3303335, 6606670, 13213340]

約数ペア:

[(1, 13213340), (2, 6606670), (4, 3303335), (5, 2642668), (7, 1887620), (10, 1321334), (14, 943810), (20, 660667), (28, 471905), (35, 377524), (49, 269660), (70, 188762), (97, 136220), (98, 134830), (139, 95060), (140, 94381), (194, 68110), (196, 67415), (245, 53932), (278, 47530), (388, 34055), (485, 27244), (490, 26966), (556, 23765), (679, 19460), (695, 19012), (970, 13622), (973, 13580), (980, 13483), (1358, 9730), (1390, 9506), (1940, 6811), (1946, 6790), (2716, 4865), (2780, 4753), (3395, 3892)]