640285368

素因数分解:

$2^3\times 3^1\times {\mathrm{53}}^1\times {\mathrm{503369}}^1$

素因数の和:503431

約数の個数: 32

約数和(自身を含む): 1630918800

約数和(自身を除く): 990633432

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 53, 106, 159, 212, 318, 424, 636, 1272, 503369, 1006738, 1510107, 2013476, 3020214, 4026952, 6040428, 12080856, 26678557, 53357114, 80035671, 106714228, 160071342, 213428456, 320142684, 640285368]

約数ペア:

[(1, 640285368), (2, 320142684), (3, 213428456), (4, 160071342), (6, 106714228), (8, 80035671), (12, 53357114), (24, 26678557), (53, 12080856), (106, 6040428), (159, 4026952), (212, 3020214), (318, 2013476), (424, 1510107), (636, 1006738), (1272, 503369)]