20356956

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:124

約数の個数: 144

約数和(自身を含む): 59754240

約数和(自身を除く): 39397284

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 29, 31, 34, 36, 37, 51, 58, 62, 68, 74, 87, 93, 102, 111, 116, 124, 148, 153, 174, 186, 204, 222, 261, 279, 306, 333, 348, 372, 444, 493, 522, 527, 558, 612, 629, 666, 899, 986, 1044, 1054, 1073, 1116, 1147, 1258, 1332, 1479, 1581, 1798, 1887, 1972, 2108, 2146, 2294, 2516, 2697, 2958, 3162, 3219, 3441, 3596, 3774, 4292, 4437, 4588, 4743, 5394, 5661, 5916, 6324, 6438, 6882, 7548, 8091, 8874, 9486, 9657, 10323, 10788, 11322, 12876, 13764, 15283, 16182, 17748, 18241, 18972, 19314, 19499, 20646, 22644, 30566, 32364, 33263, 36482, 38628, 38998, 41292, 45849, 54723, 58497, 61132, 66526, 72964, 77996, 91698, 99789, 109446, 116994, 133052, 137547, 164169, 175491, 183396, 199578, 218892, 233988, 275094, 299367, 328338, 350982, 399156, 550188, 565471, 598734, 656676, 701964, 1130942, 1197468, 1696413, 2261884, 3392826, 5089239, 6785652, 10178478, 20356956]

約数ペア:

[(1, 20356956), (2, 10178478), (3, 6785652), (4, 5089239), (6, 3392826), (9, 2261884), (12, 1696413), (17, 1197468), (18, 1130942), (29, 701964), (31, 656676), (34, 598734), (36, 565471), (37, 550188), (51, 399156), (58, 350982), (62, 328338), (68, 299367), (74, 275094), (87, 233988), (93, 218892), (102, 199578), (111, 183396), (116, 175491), (124, 164169), (148, 137547), (153, 133052), (174, 116994), (186, 109446), (204, 99789), (222, 91698), (261, 77996), (279, 72964), (306, 66526), (333, 61132), (348, 58497), (372, 54723), (444, 45849), (493, 41292), (522, 38998), (527, 38628), (558, 36482), (612, 33263), (629, 32364), (666, 30566), (899, 22644), (986, 20646), (1044, 19499), (1054, 19314), (1073, 18972), (1116, 18241), (1147, 17748), (1258, 16182), (1332, 15283), (1479, 13764), (1581, 12876), (1798, 11322), (1887, 10788), (1972, 10323), (2108, 9657), (2146, 9486), (2294, 8874), (2516, 8091), (2697, 7548), (2958, 6882), (3162, 6438), (3219, 6324), (3441, 5916), (3596, 5661), (3774, 5394), (4292, 4743), (4437, 4588)]