28374138

素因数分解:

$2^1\times 3^7\times {\mathrm{13}}^1\times {\mathrm{499}}^1$

素因数の和:535

約数の個数: 64

約数和(自身を含む): 68880000

約数和(自身を除く): 40505862

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 81, 117, 162, 234, 243, 351, 486, 499, 702, 729, 998, 1053, 1458, 1497, 2106, 2187, 2994, 3159, 4374, 4491, 6318, 6487, 8982, 9477, 12974, 13473, 18954, 19461, 26946, 28431, 38922, 40419, 56862, 58383, 80838, 116766, 121257, 175149, 242514, 350298, 363771, 525447, 727542, 1050894, 1091313, 1576341, 2182626, 3152682, 4729023, 9458046, 14187069, 28374138]

約数ペア:

[(1, 28374138), (2, 14187069), (3, 9458046), (6, 4729023), (9, 3152682), (13, 2182626), (18, 1576341), (26, 1091313), (27, 1050894), (39, 727542), (54, 525447), (78, 363771), (81, 350298), (117, 242514), (162, 175149), (234, 121257), (243, 116766), (351, 80838), (486, 58383), (499, 56862), (702, 40419), (729, 38922), (998, 28431), (1053, 26946), (1458, 19461), (1497, 18954), (2106, 13473), (2187, 12974), (2994, 9477), (3159, 8982), (4374, 6487), (4491, 6318)]