2065657960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{30539}}^1$

素因数の和:30658

約数の個数: 64

約数和(自身を含む): 4947480000

約数和(自身を除く): 2881822040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 356, 380, 445, 712, 760, 890, 1691, 1780, 3382, 3560, 6764, 8455, 13528, 16910, 30539, 33820, 61078, 67640, 122156, 152695, 244312, 305390, 580241, 610780, 1160482, 1221560, 2320964, 2717971, 2901205, 4641928, 5435942, 5802410, 10871884, 11604820, 13589855, 21743768, 23209640, 27179710, 51641449, 54359420, 103282898, 108718840, 206565796, 258207245, 413131592, 516414490, 1032828980, 2065657960]

約数ペア:

[(1, 2065657960), (2, 1032828980), (4, 516414490), (5, 413131592), (8, 258207245), (10, 206565796), (19, 108718840), (20, 103282898), (38, 54359420), (40, 51641449), (76, 27179710), (89, 23209640), (95, 21743768), (152, 13589855), (178, 11604820), (190, 10871884), (356, 5802410), (380, 5435942), (445, 4641928), (712, 2901205), (760, 2717971), (890, 2320964), (1691, 1221560), (1780, 1160482), (3382, 610780), (3560, 580241), (6764, 305390), (8455, 244312), (13528, 152695), (16910, 122156), (30539, 67640), (33820, 61078)]