640054892

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{983}}^1$

素因数の和:1166

約数の個数: 48

約数和(自身を含む): 1190246400

約数和(自身を除く): 550191508

約数列:

[1, 2, 4, 31, 59, 62, 89, 118, 124, 178, 236, 356, 983, 1829, 1966, 2759, 3658, 3932, 5251, 5518, 7316, 10502, 11036, 21004, 30473, 57997, 60946, 87487, 115994, 121892, 162781, 174974, 231988, 325562, 349948, 651124, 1797907, 2712097, 3595814, 5161733, 5424194, 7191628, 10323466, 10848388, 20646932, 160013723, 320027446, 640054892]

約数ペア:

[(1, 640054892), (2, 320027446), (4, 160013723), (31, 20646932), (59, 10848388), (62, 10323466), (89, 7191628), (118, 5424194), (124, 5161733), (178, 3595814), (236, 2712097), (356, 1797907), (983, 651124), (1829, 349948), (1966, 325562), (2759, 231988), (3658, 174974), (3932, 162781), (5251, 121892), (5518, 115994), (7316, 87487), (10502, 60946), (11036, 57997), (21004, 30473)]