12783121988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{54787}}^1$

素因数の和:55452

約数の個数: 48

約数和(自身を含む): 27576334464

約数和(自身を除く): 14793212476

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 641, 1282, 2564, 4487, 8333, 8974, 16666, 17948, 33332, 54787, 58331, 109574, 116662, 219148, 233324, 383509, 712231, 767018, 1424462, 1534036, 2848924, 4985617, 9971234, 19942468, 35118467, 70236934, 140473868, 245829269, 456540071, 491658538, 913080142, 983317076, 1826160284, 3195780497, 6391560994, 12783121988]

約数ペア:

[(1, 12783121988), (2, 6391560994), (4, 3195780497), (7, 1826160284), (13, 983317076), (14, 913080142), (26, 491658538), (28, 456540071), (52, 245829269), (91, 140473868), (182, 70236934), (364, 35118467), (641, 19942468), (1282, 9971234), (2564, 4985617), (4487, 2848924), (8333, 1534036), (8974, 1424462), (16666, 767018), (17948, 712231), (33332, 383509), (54787, 233324), (58331, 219148), (109574, 116662)]