20208825

素因数分解:

$3^3\times 5^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:93

約数の個数: 144

約数和(自身を含む): 47496960

約数和(自身を除く): 27288135

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 25, 27, 35, 39, 45, 47, 49, 63, 65, 75, 91, 105, 117, 135, 141, 147, 175, 189, 195, 225, 235, 245, 273, 315, 325, 329, 351, 423, 441, 455, 525, 585, 611, 637, 675, 705, 735, 819, 945, 975, 987, 1175, 1225, 1269, 1323, 1365, 1575, 1645, 1755, 1833, 1911, 2115, 2205, 2275, 2303, 2457, 2925, 2961, 3055, 3185, 3525, 3675, 4095, 4277, 4725, 4935, 5499, 5733, 6345, 6615, 6825, 6909, 8225, 8775, 8883, 9165, 9555, 10575, 11025, 11515, 12285, 12831, 14805, 15275, 15925, 16497, 17199, 20475, 20727, 21385, 24675, 27495, 28665, 29939, 31725, 33075, 34545, 38493, 44415, 45825, 47775, 57575, 61425, 62181, 64155, 74025, 82485, 85995, 89817, 103635, 106925, 115479, 137475, 143325, 149695, 172725, 192465, 222075, 269451, 310905, 320775, 412425, 429975, 449085, 518175, 577395, 748475, 808353, 962325, 1347255, 1554525, 2245425, 2886975, 4041765, 6736275, 20208825]

約数ペア:

[(1, 20208825), (3, 6736275), (5, 4041765), (7, 2886975), (9, 2245425), (13, 1554525), (15, 1347255), (21, 962325), (25, 808353), (27, 748475), (35, 577395), (39, 518175), (45, 449085), (47, 429975), (49, 412425), (63, 320775), (65, 310905), (75, 269451), (91, 222075), (105, 192465), (117, 172725), (135, 149695), (141, 143325), (147, 137475), (175, 115479), (189, 106925), (195, 103635), (225, 89817), (235, 85995), (245, 82485), (273, 74025), (315, 64155), (325, 62181), (329, 61425), (351, 57575), (423, 47775), (441, 45825), (455, 44415), (525, 38493), (585, 34545), (611, 33075), (637, 31725), (675, 29939), (705, 28665), (735, 27495), (819, 24675), (945, 21385), (975, 20727), (987, 20475), (1175, 17199), (1225, 16497), (1269, 15925), (1323, 15275), (1365, 14805), (1575, 12831), (1645, 12285), (1755, 11515), (1833, 11025), (1911, 10575), (2115, 9555), (2205, 9165), (2275, 8883), (2303, 8775), (2457, 8225), (2925, 6909), (2961, 6825), (3055, 6615), (3185, 6345), (3525, 5733), (3675, 5499), (4095, 4935), (4277, 4725)]