393228920

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{28661}}^1$

素因数の和:28693

約数の個数: 64

約数和(自身を含む): 1031832000

約数和(自身を除く): 638603080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2744, 3430, 6860, 13720, 28661, 57322, 114644, 143305, 200627, 229288, 286610, 401254, 573220, 802508, 1003135, 1146440, 1404389, 1605016, 2006270, 2808778, 4012540, 5617556, 7021945, 8025080, 9830723, 11235112, 14043890, 19661446, 28087780, 39322892, 49153615, 56175560, 78645784, 98307230, 196614460, 393228920]

約数ペア:

[(1, 393228920), (2, 196614460), (4, 98307230), (5, 78645784), (7, 56175560), (8, 49153615), (10, 39322892), (14, 28087780), (20, 19661446), (28, 14043890), (35, 11235112), (40, 9830723), (49, 8025080), (56, 7021945), (70, 5617556), (98, 4012540), (140, 2808778), (196, 2006270), (245, 1605016), (280, 1404389), (343, 1146440), (392, 1003135), (490, 802508), (686, 573220), (980, 401254), (1372, 286610), (1715, 229288), (1960, 200627), (2744, 143305), (3430, 114644), (6860, 57322), (13720, 28661)]