28907844

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{233}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 79174368

約数和(自身を除く): 50266524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 211, 233, 294, 422, 466, 588, 633, 699, 844, 932, 1266, 1398, 1477, 1631, 2532, 2796, 2954, 3262, 4431, 4893, 5908, 6524, 8862, 9786, 10339, 11417, 17724, 19572, 20678, 22834, 31017, 34251, 41356, 45668, 49163, 62034, 68502, 98326, 124068, 137004, 147489, 196652, 294978, 344141, 589956, 688282, 1032423, 1376564, 2064846, 2408987, 4129692, 4817974, 7226961, 9635948, 14453922, 28907844]

約数ペア:

[(1, 28907844), (2, 14453922), (3, 9635948), (4, 7226961), (6, 4817974), (7, 4129692), (12, 2408987), (14, 2064846), (21, 1376564), (28, 1032423), (42, 688282), (49, 589956), (84, 344141), (98, 294978), (147, 196652), (196, 147489), (211, 137004), (233, 124068), (294, 98326), (422, 68502), (466, 62034), (588, 49163), (633, 45668), (699, 41356), (844, 34251), (932, 31017), (1266, 22834), (1398, 20678), (1477, 19572), (1631, 17724), (2532, 11417), (2796, 10339), (2954, 9786), (3262, 8862), (4431, 6524), (4893, 5908)]