308920976

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{641}}^1$

素因数の和:1000

約数の個数: 80

約数和(自身を含む): 740035968

約数和(自身を除く): 431114992

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 331, 364, 641, 662, 728, 1282, 1324, 1456, 2317, 2564, 2648, 4303, 4487, 4634, 5128, 5296, 8333, 8606, 8974, 9268, 10256, 16666, 17212, 17948, 18536, 30121, 33332, 34424, 35896, 37072, 58331, 60242, 66664, 68848, 71792, 116662, 120484, 133328, 212171, 233324, 240968, 424342, 466648, 481936, 848684, 933296, 1485197, 1697368, 2758223, 2970394, 3394736, 5516446, 5940788, 11032892, 11881576, 19307561, 22065784, 23763152, 38615122, 44131568, 77230244, 154460488, 308920976]

約数ペア:

[(1, 308920976), (2, 154460488), (4, 77230244), (7, 44131568), (8, 38615122), (13, 23763152), (14, 22065784), (16, 19307561), (26, 11881576), (28, 11032892), (52, 5940788), (56, 5516446), (91, 3394736), (104, 2970394), (112, 2758223), (182, 1697368), (208, 1485197), (331, 933296), (364, 848684), (641, 481936), (662, 466648), (728, 424342), (1282, 240968), (1324, 233324), (1456, 212171), (2317, 133328), (2564, 120484), (2648, 116662), (4303, 71792), (4487, 68848), (4634, 66664), (5128, 60242), (5296, 58331), (8333, 37072), (8606, 35896), (8974, 34424), (9268, 33332), (10256, 30121), (16666, 18536), (17212, 17948)]