28958436

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1439}}^1$

素因数の和:1505

約数の個数: 72

約数和(自身を含む): 80720640

約数和(自身を除く): 51762204

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 43, 52, 78, 86, 117, 129, 156, 172, 234, 258, 387, 468, 516, 559, 774, 1118, 1439, 1548, 1677, 2236, 2878, 3354, 4317, 5031, 5756, 6708, 8634, 10062, 12951, 17268, 18707, 20124, 25902, 37414, 51804, 56121, 61877, 74828, 112242, 123754, 168363, 185631, 224484, 247508, 336726, 371262, 556893, 673452, 742524, 804401, 1113786, 1608802, 2227572, 2413203, 3217604, 4826406, 7239609, 9652812, 14479218, 28958436]

約数ペア:

[(1, 28958436), (2, 14479218), (3, 9652812), (4, 7239609), (6, 4826406), (9, 3217604), (12, 2413203), (13, 2227572), (18, 1608802), (26, 1113786), (36, 804401), (39, 742524), (43, 673452), (52, 556893), (78, 371262), (86, 336726), (117, 247508), (129, 224484), (156, 185631), (172, 168363), (234, 123754), (258, 112242), (387, 74828), (468, 61877), (516, 56121), (559, 51804), (774, 37414), (1118, 25902), (1439, 20124), (1548, 18707), (1677, 17268), (2236, 12951), (2878, 10062), (3354, 8634), (4317, 6708), (5031, 5756)]