25820672

素因数分解:

$2^9\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1$

素因数の和:131

約数の個数: 80

約数和(自身を含む): 55978560

約数和(自身を除く): 30157888

約数列:

[1, 2, 4, 8, 16, 29, 32, 37, 47, 58, 64, 74, 94, 116, 128, 148, 188, 232, 256, 296, 376, 464, 512, 592, 752, 928, 1073, 1184, 1363, 1504, 1739, 1856, 2146, 2368, 2726, 3008, 3478, 3712, 4292, 4736, 5452, 6016, 6956, 7424, 8584, 9472, 10904, 12032, 13912, 14848, 17168, 18944, 21808, 24064, 27824, 34336, 43616, 50431, 55648, 68672, 87232, 100862, 111296, 137344, 174464, 201724, 222592, 274688, 348928, 403448, 445184, 549376, 697856, 806896, 890368, 1613792, 3227584, 6455168, 12910336, 25820672]

約数ペア:

[(1, 25820672), (2, 12910336), (4, 6455168), (8, 3227584), (16, 1613792), (29, 890368), (32, 806896), (37, 697856), (47, 549376), (58, 445184), (64, 403448), (74, 348928), (94, 274688), (116, 222592), (128, 201724), (148, 174464), (188, 137344), (232, 111296), (256, 100862), (296, 87232), (376, 68672), (464, 55648), (512, 50431), (592, 43616), (752, 34336), (928, 27824), (1073, 24064), (1184, 21808), (1363, 18944), (1504, 17168), (1739, 14848), (1856, 13912), (2146, 12032), (2368, 10904), (2726, 9472), (3008, 8584), (3478, 7424), (3712, 6956), (4292, 6016), (4736, 5452)]