419423440

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127873}}^1$

素因数の和:127927

約数の個数: 40

約数和(自身を含む): 998951688

約数和(自身を除く): 579528248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 127873, 255746, 511492, 639365, 1022984, 1278730, 2045968, 2557460, 5114920, 5242793, 10229840, 10485586, 20971172, 26213965, 41942344, 52427930, 83884688, 104855860, 209711720, 419423440]

約数ペア:

[(1, 419423440), (2, 209711720), (4, 104855860), (5, 83884688), (8, 52427930), (10, 41942344), (16, 26213965), (20, 20971172), (40, 10485586), (41, 10229840), (80, 5242793), (82, 5114920), (164, 2557460), (205, 2045968), (328, 1278730), (410, 1022984), (656, 639365), (820, 511492), (1640, 255746), (3280, 127873)]