28072122

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:263

約数の個数: 64

約数和(自身を含む): 63431424

約数和(自身を除く): 35359302

約数列:

[1, 2, 3, 6, 13, 26, 37, 39, 71, 74, 78, 111, 137, 142, 213, 222, 274, 411, 426, 481, 822, 923, 962, 1443, 1781, 1846, 2627, 2769, 2886, 3562, 5069, 5254, 5343, 5538, 7881, 9727, 10138, 10686, 15207, 15762, 19454, 29181, 30414, 34151, 58362, 65897, 68302, 102453, 126451, 131794, 197691, 204906, 252902, 359899, 379353, 395382, 719798, 758706, 1079697, 2159394, 4678687, 9357374, 14036061, 28072122]

約数ペア:

[(1, 28072122), (2, 14036061), (3, 9357374), (6, 4678687), (13, 2159394), (26, 1079697), (37, 758706), (39, 719798), (71, 395382), (74, 379353), (78, 359899), (111, 252902), (137, 204906), (142, 197691), (213, 131794), (222, 126451), (274, 102453), (411, 68302), (426, 65897), (481, 58362), (822, 34151), (923, 30414), (962, 29181), (1443, 19454), (1781, 15762), (1846, 15207), (2627, 10686), (2769, 10138), (2886, 9727), (3562, 7881), (5069, 5538), (5254, 5343)]