78447880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{503}}^1\times {\mathrm{557}}^1$

素因数の和:1078

約数の個数: 64

約数和(自身を含む): 202487040

約数和(自身を除く): 124039160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 503, 557, 1006, 1114, 2012, 2228, 2515, 2785, 3521, 3899, 4024, 4456, 5030, 5570, 7042, 7798, 10060, 11140, 14084, 15596, 17605, 19495, 20120, 22280, 28168, 31192, 35210, 38990, 70420, 77980, 140840, 155960, 280171, 560342, 1120684, 1400855, 1961197, 2241368, 2801710, 3922394, 5603420, 7844788, 9805985, 11206840, 15689576, 19611970, 39223940, 78447880]

約数ペア:

[(1, 78447880), (2, 39223940), (4, 19611970), (5, 15689576), (7, 11206840), (8, 9805985), (10, 7844788), (14, 5603420), (20, 3922394), (28, 2801710), (35, 2241368), (40, 1961197), (56, 1400855), (70, 1120684), (140, 560342), (280, 280171), (503, 155960), (557, 140840), (1006, 77980), (1114, 70420), (2012, 38990), (2228, 35210), (2515, 31192), (2785, 28168), (3521, 22280), (3899, 20120), (4024, 19495), (4456, 17605), (5030, 15596), (5570, 14084), (7042, 11140), (7798, 10060)]