28696212

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:293

約数の個数: 72

約数和(自身を含む): 74954880

約数和(自身を除く): 46258668

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 103, 109, 142, 206, 213, 218, 284, 309, 327, 412, 426, 436, 618, 639, 654, 852, 927, 981, 1236, 1278, 1308, 1854, 1962, 2556, 3708, 3924, 7313, 7739, 11227, 14626, 15478, 21939, 22454, 23217, 29252, 30956, 33681, 43878, 44908, 46434, 65817, 67362, 69651, 87756, 92868, 101043, 131634, 134724, 139302, 202086, 263268, 278604, 404172, 797117, 1594234, 2391351, 3188468, 4782702, 7174053, 9565404, 14348106, 28696212]

約数ペア:

[(1, 28696212), (2, 14348106), (3, 9565404), (4, 7174053), (6, 4782702), (9, 3188468), (12, 2391351), (18, 1594234), (36, 797117), (71, 404172), (103, 278604), (109, 263268), (142, 202086), (206, 139302), (213, 134724), (218, 131634), (284, 101043), (309, 92868), (327, 87756), (412, 69651), (426, 67362), (436, 65817), (618, 46434), (639, 44908), (654, 43878), (852, 33681), (927, 30956), (981, 29252), (1236, 23217), (1278, 22454), (1308, 21939), (1854, 15478), (1962, 14626), (2556, 11227), (3708, 7739), (3924, 7313)]