12649840

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{461}}^1$

素因数の和:495

約数の個数: 80

約数和(自身を含む): 34372800

約数和(自身を除く): 21722960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 343, 392, 461, 490, 560, 686, 784, 922, 980, 1372, 1715, 1844, 1960, 2305, 2744, 3227, 3430, 3688, 3920, 4610, 5488, 6454, 6860, 7376, 9220, 12908, 13720, 16135, 18440, 22589, 25816, 27440, 32270, 36880, 45178, 51632, 64540, 90356, 112945, 129080, 158123, 180712, 225890, 258160, 316246, 361424, 451780, 632492, 790615, 903560, 1264984, 1581230, 1807120, 2529968, 3162460, 6324920, 12649840]

約数ペア:

[(1, 12649840), (2, 6324920), (4, 3162460), (5, 2529968), (7, 1807120), (8, 1581230), (10, 1264984), (14, 903560), (16, 790615), (20, 632492), (28, 451780), (35, 361424), (40, 316246), (49, 258160), (56, 225890), (70, 180712), (80, 158123), (98, 129080), (112, 112945), (140, 90356), (196, 64540), (245, 51632), (280, 45178), (343, 36880), (392, 32270), (461, 27440), (490, 25816), (560, 22589), (686, 18440), (784, 16135), (922, 13720), (980, 12908), (1372, 9220), (1715, 7376), (1844, 6860), (1960, 6454), (2305, 5488), (2744, 4610), (3227, 3920), (3430, 3688)]