28127715

素因数分解:

$3^1\times 5^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{71}}^1$

素因数の和:118

約数の個数: 80

約数和(自身を含む): 58081536

約数和(自身を除く): 29953821

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 49, 55, 71, 77, 105, 147, 165, 213, 231, 245, 343, 355, 385, 497, 539, 735, 781, 1029, 1065, 1155, 1491, 1617, 1715, 2343, 2401, 2485, 2695, 3479, 3773, 3905, 5145, 5467, 7203, 7455, 8085, 10437, 11319, 11715, 12005, 16401, 17395, 18865, 24353, 26411, 27335, 36015, 38269, 52185, 56595, 73059, 79233, 82005, 114807, 121765, 132055, 170471, 191345, 267883, 365295, 396165, 511413, 574035, 803649, 852355, 1339415, 1875181, 2557065, 4018245, 5625543, 9375905, 28127715]

約数ペア:

[(1, 28127715), (3, 9375905), (5, 5625543), (7, 4018245), (11, 2557065), (15, 1875181), (21, 1339415), (33, 852355), (35, 803649), (49, 574035), (55, 511413), (71, 396165), (77, 365295), (105, 267883), (147, 191345), (165, 170471), (213, 132055), (231, 121765), (245, 114807), (343, 82005), (355, 79233), (385, 73059), (497, 56595), (539, 52185), (735, 38269), (781, 36015), (1029, 27335), (1065, 26411), (1155, 24353), (1491, 18865), (1617, 17395), (1715, 16401), (2343, 12005), (2401, 11715), (2485, 11319), (2695, 10437), (3479, 8085), (3773, 7455), (3905, 7203), (5145, 5467)]