28709912

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{223}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 71500800

約数和(自身を除く): 42790888

約数列:

[1, 2, 4, 7, 8, 11, 14, 19, 22, 28, 38, 44, 56, 76, 77, 88, 121, 133, 152, 154, 209, 223, 242, 266, 308, 418, 446, 484, 532, 616, 836, 847, 892, 968, 1064, 1463, 1561, 1672, 1694, 1784, 2299, 2453, 2926, 3122, 3388, 4237, 4598, 4906, 5852, 6244, 6776, 8474, 9196, 9812, 11704, 12488, 16093, 16948, 17171, 18392, 19624, 26983, 29659, 32186, 33896, 34342, 46607, 53966, 59318, 64372, 68684, 93214, 107932, 118636, 128744, 137368, 186428, 188881, 215864, 237272, 326249, 372856, 377762, 512677, 652498, 755524, 1025354, 1304996, 1511048, 2050708, 2609992, 3588739, 4101416, 7177478, 14354956, 28709912]

約数ペア:

[(1, 28709912), (2, 14354956), (4, 7177478), (7, 4101416), (8, 3588739), (11, 2609992), (14, 2050708), (19, 1511048), (22, 1304996), (28, 1025354), (38, 755524), (44, 652498), (56, 512677), (76, 377762), (77, 372856), (88, 326249), (121, 237272), (133, 215864), (152, 188881), (154, 186428), (209, 137368), (223, 128744), (242, 118636), (266, 107932), (308, 93214), (418, 68684), (446, 64372), (484, 59318), (532, 53966), (616, 46607), (836, 34342), (847, 33896), (892, 32186), (968, 29659), (1064, 26983), (1463, 19624), (1561, 18392), (1672, 17171), (1694, 16948), (1784, 16093), (2299, 12488), (2453, 11704), (2926, 9812), (3122, 9196), (3388, 8474), (4237, 6776), (4598, 6244), (4906, 5852)]