64147990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{10891}}^1$

素因数の和:10948

約数の個数: 32

約数和(自身を含む): 125475840

約数和(自身を除く): 61327850

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 95, 155, 190, 310, 589, 1178, 2945, 5890, 10891, 21782, 54455, 108910, 206929, 337621, 413858, 675242, 1034645, 1688105, 2069290, 3376210, 6414799, 12829598, 32073995, 64147990]

約数ペア:

[(1, 64147990), (2, 32073995), (5, 12829598), (10, 6414799), (19, 3376210), (31, 2069290), (38, 1688105), (62, 1034645), (95, 675242), (155, 413858), (190, 337621), (310, 206929), (589, 108910), (1178, 54455), (2945, 21782), (5890, 10891)]