647564428

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{331}}^1\times {\mathrm{653}}^1$

素因数の和:1102

約数の個数: 48

約数和(自身を含む): 1313190144

約数和(自身を除く): 665625716

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 331, 428, 653, 662, 749, 1306, 1324, 1498, 2317, 2612, 2996, 4571, 4634, 9142, 9268, 18284, 35417, 69871, 70834, 139742, 141668, 216143, 247919, 279484, 432286, 489097, 495838, 864572, 978194, 991676, 1513001, 1956388, 3026002, 6052004, 23127301, 46254602, 92509204, 161891107, 323782214, 647564428]

約数ペア:

[(1, 647564428), (2, 323782214), (4, 161891107), (7, 92509204), (14, 46254602), (28, 23127301), (107, 6052004), (214, 3026002), (331, 1956388), (428, 1513001), (653, 991676), (662, 978194), (749, 864572), (1306, 495838), (1324, 489097), (1498, 432286), (2317, 279484), (2612, 247919), (2996, 216143), (4571, 141668), (4634, 139742), (9142, 70834), (9268, 69871), (18284, 35417)]