28409808

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:329

約数の個数: 120

約数和(自身を含む): 87530112

約数和(自身を除く): 59120304

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 47, 48, 49, 56, 84, 94, 98, 112, 141, 147, 168, 188, 196, 257, 282, 294, 329, 336, 376, 392, 514, 564, 588, 658, 752, 771, 784, 987, 1028, 1128, 1176, 1316, 1542, 1799, 1974, 2056, 2256, 2303, 2352, 2632, 3084, 3598, 3948, 4112, 4606, 5264, 5397, 6168, 6909, 7196, 7896, 9212, 10794, 12079, 12336, 12593, 13818, 14392, 15792, 18424, 21588, 24158, 25186, 27636, 28784, 36237, 36848, 37779, 43176, 48316, 50372, 55272, 72474, 75558, 84553, 86352, 96632, 100744, 110544, 144948, 151116, 169106, 193264, 201488, 253659, 289896, 302232, 338212, 507318, 579792, 591871, 604464, 676424, 1014636, 1183742, 1352848, 1775613, 2029272, 2367484, 3551226, 4058544, 4734968, 7102452, 9469936, 14204904, 28409808]

約数ペア:

[(1, 28409808), (2, 14204904), (3, 9469936), (4, 7102452), (6, 4734968), (7, 4058544), (8, 3551226), (12, 2367484), (14, 2029272), (16, 1775613), (21, 1352848), (24, 1183742), (28, 1014636), (42, 676424), (47, 604464), (48, 591871), (49, 579792), (56, 507318), (84, 338212), (94, 302232), (98, 289896), (112, 253659), (141, 201488), (147, 193264), (168, 169106), (188, 151116), (196, 144948), (257, 110544), (282, 100744), (294, 96632), (329, 86352), (336, 84553), (376, 75558), (392, 72474), (514, 55272), (564, 50372), (588, 48316), (658, 43176), (752, 37779), (771, 36848), (784, 36237), (987, 28784), (1028, 27636), (1128, 25186), (1176, 24158), (1316, 21588), (1542, 18424), (1799, 15792), (1974, 14392), (2056, 13818), (2256, 12593), (2303, 12336), (2352, 12079), (2632, 10794), (3084, 9212), (3598, 7896), (3948, 7196), (4112, 6909), (4606, 6168), (5264, 5397)]